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Finding the Fourth Proportional to 615,122.40, 922,683.60 and 548,637.60

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Solution

The fourth proportional to 615,122.40, 922,683.60 and 548,637.60 is: 822,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,122.40 : 922,683.60 = 548,637.60 : x
  2. Step 2: Convert to fraction form
    615,122.40/922,683.60 = 548,637.60/x
  3. Step 3: Cross multiply
    615,122.40x = 922,683.60 × 548,637.60
  4. Step 4: Simplify right side
    615,122.40x = 506,218,915,863.36
  5. Step 5: Solve for x
    x = 506,218,915,863.36/615,122.40
  6. Step 6: Final answer
    x = 822,956.40

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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.