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Finding the Fourth Proportional to 615,023.80, 922,535.70 and 363,081.40

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Solution

The fourth proportional to 615,023.80, 922,535.70 and 363,081.40 is: 544,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,023.80 : 922,535.70 = 363,081.40 : x
  2. Step 2: Convert to fraction form
    615,023.80/922,535.70 = 363,081.40/x
  3. Step 3: Cross multiply
    615,023.80x = 922,535.70 × 363,081.40
  4. Step 4: Simplify right side
    615,023.80x = 334,955,553,505.98
  5. Step 5: Solve for x
    x = 334,955,553,505.98/615,023.80
  6. Step 6: Final answer
    x = 544,622.10

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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.