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Finding the Fourth Proportional to 573,880.40, 860,820.60 and 472,403.60

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Solution

The fourth proportional to 573,880.40, 860,820.60 and 472,403.60 is: 708,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,880.40 : 860,820.60 = 472,403.60 : x
  2. Step 2: Convert to fraction form
    573,880.40/860,820.60 = 472,403.60/x
  3. Step 3: Cross multiply
    573,880.40x = 860,820.60 × 472,403.60
  4. Step 4: Simplify right side
    573,880.40x = 406,654,750,394.16
  5. Step 5: Solve for x
    x = 406,654,750,394.16/573,880.40
  6. Step 6: Final answer
    x = 708,605.40

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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.