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Finding the Fourth Proportional to 586,507.20, 879,760.80 and 376,555.20

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Solution

The fourth proportional to 586,507.20, 879,760.80 and 376,555.20 is: 564,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,507.20 : 879,760.80 = 376,555.20 : x
  2. Step 2: Convert to fraction form
    586,507.20/879,760.80 = 376,555.20/x
  3. Step 3: Cross multiply
    586,507.20x = 879,760.80 × 376,555.20
  4. Step 4: Simplify right side
    586,507.20x = 331,278,503,996.16
  5. Step 5: Solve for x
    x = 331,278,503,996.16/586,507.20
  6. Step 6: Final answer
    x = 564,832.80

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Double scale
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Similar ratio
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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.