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Finding the Fourth Proportional to 615,020.70, 922,531.05 and 615,020.70

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Solution

The fourth proportional to 615,020.70, 922,531.05 and 615,020.70 is: 922,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,020.70 : 922,531.05 = 615,020.70 : x
  2. Step 2: Convert to fraction form
    615,020.70/922,531.05 = 615,020.70/x
  3. Step 3: Cross multiply
    615,020.70x = 922,531.05 × 615,020.70
  4. Step 4: Simplify right side
    615,020.70x = 567,375,692,142.74
  5. Step 5: Solve for x
    x = 567,375,692,142.74/615,020.70
  6. Step 6: Final answer
    x = 922,531.05

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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.