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Finding the Fourth Proportional to 615,148.80, 922,723.20 and 615,148.80

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Solution

The fourth proportional to 615,148.80, 922,723.20 and 615,148.80 is: 922,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,148.80 : 922,723.20 = 615,148.80 : x
  2. Step 2: Convert to fraction form
    615,148.80/922,723.20 = 615,148.80/x
  3. Step 3: Cross multiply
    615,148.80x = 922,723.20 × 615,148.80
  4. Step 4: Simplify right side
    615,148.80x = 567,612,069,212.16
  5. Step 5: Solve for x
    x = 567,612,069,212.16/615,148.80
  6. Step 6: Final answer
    x = 922,723.20

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1.5x scale

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.