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Finding the Fourth Proportional to 615,914.80, 923,872.20 and 587,046.40

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Solution

The fourth proportional to 615,914.80, 923,872.20 and 587,046.40 is: 880,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,914.80 : 923,872.20 = 587,046.40 : x
  2. Step 2: Convert to fraction form
    615,914.80/923,872.20 = 587,046.40/x
  3. Step 3: Cross multiply
    615,914.80x = 923,872.20 × 587,046.40
  4. Step 4: Simplify right side
    615,914.80x = 542,355,849,070.08
  5. Step 5: Solve for x
    x = 542,355,849,070.08/615,914.80
  6. Step 6: Final answer
    x = 880,569.60

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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.