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Finding the Fourth Proportional to 622,561.92, 864,935.52 and 615,096.96

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Solution

The fourth proportional to 622,561.92, 864,935.52 and 615,096.96 is: 854,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,561.92 : 864,935.52 = 615,096.96 : x
  2. Step 2: Convert to fraction form
    622,561.92/864,935.52 = 615,096.96/x
  3. Step 3: Cross multiply
    622,561.92x = 864,935.52 × 615,096.96
  4. Step 4: Simplify right side
    622,561.92x = 532,019,208,948.02
  5. Step 5: Solve for x
    x = 532,019,208,948.02/622,561.92
  6. Step 6: Final answer
    x = 854,564.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.