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Finding the Fourth Proportional to 573,553.60, 860,330.40 and 363,428.80

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Solution

The fourth proportional to 573,553.60, 860,330.40 and 363,428.80 is: 545,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,553.60 : 860,330.40 = 363,428.80 : x
  2. Step 2: Convert to fraction form
    573,553.60/860,330.40 = 363,428.80/x
  3. Step 3: Cross multiply
    573,553.60x = 860,330.40 × 363,428.80
  4. Step 4: Simplify right side
    573,553.60x = 312,668,844,875.52
  5. Step 5: Solve for x
    x = 312,668,844,875.52/573,553.60
  6. Step 6: Final answer
    x = 545,143.20

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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.