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Finding the Fourth Proportional to 584,421.80, 876,632.70 and 571,299.80

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Solution

The fourth proportional to 584,421.80, 876,632.70 and 571,299.80 is: 856,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,421.80 : 876,632.70 = 571,299.80 : x
  2. Step 2: Convert to fraction form
    584,421.80/876,632.70 = 571,299.80/x
  3. Step 3: Cross multiply
    584,421.80x = 876,632.70 × 571,299.80
  4. Step 4: Simplify right side
    584,421.80x = 500,820,086,183.46
  5. Step 5: Solve for x
    x = 500,820,086,183.46/584,421.80
  6. Step 6: Final answer
    x = 856,949.70

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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.