Home / 885,969.40-1,328,046.90-435,998.20

Finding the Fourth Proportional to 885,969.40, 1,328,046.90 and 435,998.20

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Solution

The fourth proportional to 885,969.40, 1,328,046.90 and 435,998.20 is: 653,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,969.40 : 1,328,046.90 = 435,998.20 : x
  2. Step 2: Convert to fraction form
    885,969.40/1,328,046.90 = 435,998.20/x
  3. Step 3: Cross multiply
    885,969.40x = 1,328,046.90 × 435,998.20
  4. Step 4: Simplify right side
    885,969.40x = 579,026,057,915.58
  5. Step 5: Solve for x
    x = 579,026,057,915.58/885,969.40
  6. Step 6: Final answer
    x = 653,550.85

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Double scale
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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.