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Finding the Fourth Proportional to 586,923.20, 879,607.20 and 520,049.60

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Solution

The fourth proportional to 586,923.20, 879,607.20 and 520,049.60 is: 779,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,923.20 : 879,607.20 = 520,049.60 : x
  2. Step 2: Convert to fraction form
    586,923.20/879,607.20 = 520,049.60/x
  3. Step 3: Cross multiply
    586,923.20x = 879,607.20 × 520,049.60
  4. Step 4: Simplify right side
    586,923.20x = 457,439,372,517.12
  5. Step 5: Solve for x
    x = 457,439,372,517.12/586,923.20
  6. Step 6: Final answer
    x = 779,385.40

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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.