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Finding the Fourth Proportional to 615,527.20, 922,513.20 and 548,653.60

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Solution

The fourth proportional to 615,527.20, 922,513.20 and 548,653.60 is: 822,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,527.20 : 922,513.20 = 548,653.60 : x
  2. Step 2: Convert to fraction form
    615,527.20/922,513.20 = 548,653.60/x
  3. Step 3: Cross multiply
    615,527.20x = 922,513.20 × 548,653.60
  4. Step 4: Simplify right side
    615,527.20x = 506,140,188,227.52
  5. Step 5: Solve for x
    x = 506,140,188,227.52/615,527.20
  6. Step 6: Final answer
    x = 822,287.28

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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.