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Finding the Fourth Proportional to 584,443.80, 876,665.70 and 505,711.80

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Solution

The fourth proportional to 584,443.80, 876,665.70 and 505,711.80 is: 758,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,443.80 : 876,665.70 = 505,711.80 : x
  2. Step 2: Convert to fraction form
    584,443.80/876,665.70 = 505,711.80/x
  3. Step 3: Cross multiply
    584,443.80x = 876,665.70 × 505,711.80
  4. Step 4: Simplify right side
    584,443.80x = 443,340,189,145.26
  5. Step 5: Solve for x
    x = 443,340,189,145.26/584,443.80
  6. Step 6: Final answer
    x = 758,567.70

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Half scale
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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.