Home / 783,503.30-1,081,458.76-461,400.24

Finding the Fourth Proportional to 783,503.30, 1,081,458.76 and 461,400.24

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Solution

The fourth proportional to 783,503.30, 1,081,458.76 and 461,400.24 is: 636,864.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,503.30 : 1,081,458.76 = 461,400.24 : x
  2. Step 2: Convert to fraction form
    783,503.30/1,081,458.76 = 461,400.24/x
  3. Step 3: Cross multiply
    783,503.30x = 1,081,458.76 × 461,400.24
  4. Step 4: Simplify right side
    783,503.30x = 498,985,331,414.10
  5. Step 5: Solve for x
    x = 498,985,331,414.10/783,503.30
  6. Step 6: Final answer
    x = 636,864.36

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.