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Finding the Fourth Proportional to 860,655.60, 1,289,634 and 544,444.56

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Solution

The fourth proportional to 860,655.60, 1,289,634 and 544,444.56 is: 815,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,655.60 : 1,289,634 = 544,444.56 : x
  2. Step 2: Convert to fraction form
    860,655.60/1,289,634 = 544,444.56/x
  3. Step 3: Cross multiply
    860,655.60x = 1,289,634 × 544,444.56
  4. Step 4: Simplify right side
    860,655.60x = 702,134,215,691.04
  5. Step 5: Solve for x
    x = 702,134,215,691.04/860,655.60
  6. Step 6: Final answer
    x = 815,813.22

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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.