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Finding the Fourth Proportional to 573,617.61, 860,419.13 and 257,851.26

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Solution

The fourth proportional to 573,617.61, 860,419.13 and 257,851.26 is: 386,773.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,617.61 : 860,419.13 = 257,851.26 : x
  2. Step 2: Convert to fraction form
    573,617.61/860,419.13 = 257,851.26/x
  3. Step 3: Cross multiply
    573,617.61x = 860,419.13 × 257,851.26
  4. Step 4: Simplify right side
    573,617.61x = 221,860,155,509.35
  5. Step 5: Solve for x
    x = 221,860,155,509.35/573,617.61
  6. Step 6: Final answer
    x = 386,773.61

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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.