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Finding the Fourth Proportional to 615,728.80, 923,593.20 and 592,109.20

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Solution

The fourth proportional to 615,728.80, 923,593.20 and 592,109.20 is: 888,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,728.80 : 923,593.20 = 592,109.20 : x
  2. Step 2: Convert to fraction form
    615,728.80/923,593.20 = 592,109.20/x
  3. Step 3: Cross multiply
    615,728.80x = 923,593.20 × 592,109.20
  4. Step 4: Simplify right side
    615,728.80x = 546,868,030,777.44
  5. Step 5: Solve for x
    x = 546,868,030,777.44/615,728.80
  6. Step 6: Final answer
    x = 888,163.80

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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.