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Finding the Fourth Proportional to 573,938.10, 860,907.15 and 363,813.30

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Solution

The fourth proportional to 573,938.10, 860,907.15 and 363,813.30 is: 545,719.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,938.10 : 860,907.15 = 363,813.30 : x
  2. Step 2: Convert to fraction form
    573,938.10/860,907.15 = 363,813.30/x
  3. Step 3: Cross multiply
    573,938.10x = 860,907.15 × 363,813.30
  4. Step 4: Simplify right side
    573,938.10x = 313,209,471,235.10
  5. Step 5: Solve for x
    x = 313,209,471,235.10/573,938.10
  6. Step 6: Final answer
    x = 545,719.95

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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.