Home / 640,338.28-883,577.08-368,302.76

Finding the Fourth Proportional to 640,338.28, 883,577.08 and 368,302.76

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Solution

The fourth proportional to 640,338.28, 883,577.08 and 368,302.76 is: 508,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,338.28 : 883,577.08 = 368,302.76 : x
  2. Step 2: Convert to fraction form
    640,338.28/883,577.08 = 368,302.76/x
  3. Step 3: Cross multiply
    640,338.28x = 883,577.08 × 368,302.76
  4. Step 4: Simplify right side
    640,338.28x = 325,423,877,236.74
  5. Step 5: Solve for x
    x = 325,423,877,236.74/640,338.28
  6. Step 6: Final answer
    x = 508,206.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.