Home / 521,640,602.30-782,460,903.45-368,585,594.30

Finding the Fourth Proportional to 521,640,602.30, 782,460,903.45 and 368,585,594.30

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Solution

The fourth proportional to 521,640,602.30, 782,460,903.45 and 368,585,594.30 is: 552,878,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,640,602.30 : 782,460,903.45 = 368,585,594.30 : x
  2. Step 2: Convert to fraction form
    521,640,602.30/782,460,903.45 = 368,585,594.30/x
  3. Step 3: Cross multiply
    521,640,602.30x = 782,460,903.45 × 368,585,594.30
  4. Step 4: Simplify right side
    521,640,602.30x = 288,403,817,114,633,216
  5. Step 5: Solve for x
    x = 288,403,817,114,633,216/521,640,602.30
  6. Step 6: Final answer
    x = 552,878,391.45

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Double scale
Find fourth proportional to 521,640,603.30, 782,460,904.95 and 368,585,595.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.