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Finding the Fourth Proportional to 573,117.20, 859,675.80 and 307,396.70

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Solution

The fourth proportional to 573,117.20, 859,675.80 and 307,396.70 is: 461,095.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,117.20 : 859,675.80 = 307,396.70 : x
  2. Step 2: Convert to fraction form
    573,117.20/859,675.80 = 307,396.70/x
  3. Step 3: Cross multiply
    573,117.20x = 859,675.80 × 307,396.70
  4. Step 4: Simplify right side
    573,117.20x = 264,261,503,989.86
  5. Step 5: Solve for x
    x = 264,261,503,989.86/573,117.20
  6. Step 6: Final answer
    x = 461,095.05

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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.