Home / 621,705.20-932,557.80-572,716.40

Finding the Fourth Proportional to 621,705.20, 932,557.80 and 572,716.40

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Solution

The fourth proportional to 621,705.20, 932,557.80 and 572,716.40 is: 859,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,705.20 : 932,557.80 = 572,716.40 : x
  2. Step 2: Convert to fraction form
    621,705.20/932,557.80 = 572,716.40/x
  3. Step 3: Cross multiply
    621,705.20x = 932,557.80 × 572,716.40
  4. Step 4: Simplify right side
    621,705.20x = 534,091,146,007.92
  5. Step 5: Solve for x
    x = 534,091,146,007.92/621,705.20
  6. Step 6: Final answer
    x = 859,074.60

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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.