Home / 1,205,196.71-1,663,166.88-661,341.60

Finding the Fourth Proportional to 1,205,196.71, 1,663,166.88 and 661,341.60

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Solution

The fourth proportional to 1,205,196.71, 1,663,166.88 and 661,341.60 is: 912,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,196.71 : 1,663,166.88 = 661,341.60 : x
  2. Step 2: Convert to fraction form
    1,205,196.71/1,663,166.88 = 661,341.60/x
  3. Step 3: Cross multiply
    1,205,196.71x = 1,663,166.88 × 661,341.60
  4. Step 4: Simplify right side
    1,205,196.71x = 1,099,921,445,486.21
  5. Step 5: Solve for x
    x = 1,099,921,445,486.21/1,205,196.71
  6. Step 6: Final answer
    x = 912,648.90

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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.