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Finding the Fourth Proportional to 579,520.70, 869,281.05 and 366,944.30

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Solution

The fourth proportional to 579,520.70, 869,281.05 and 366,944.30 is: 550,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,520.70 : 869,281.05 = 366,944.30 : x
  2. Step 2: Convert to fraction form
    579,520.70/869,281.05 = 366,944.30/x
  3. Step 3: Cross multiply
    579,520.70x = 869,281.05 × 366,944.30
  4. Step 4: Simplify right side
    579,520.70x = 318,977,726,395.52
  5. Step 5: Solve for x
    x = 318,977,726,395.52/579,520.70
  6. Step 6: Final answer
    x = 550,416.45

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Half scale
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Double scale
Find fourth proportional to 579,521.70, 869,282.55 and 366,945.30
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.