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Finding the Fourth Proportional to 1,591,319.24, 2,386,978.86 and 469,300.76

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Solution

The fourth proportional to 1,591,319.24, 2,386,978.86 and 469,300.76 is: 703,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591,319.24 : 2,386,978.86 = 469,300.76 : x
  2. Step 2: Convert to fraction form
    1,591,319.24/2,386,978.86 = 469,300.76/x
  3. Step 3: Cross multiply
    1,591,319.24x = 2,386,978.86 × 469,300.76
  4. Step 4: Simplify right side
    1,591,319.24x = 1,120,210,993,101.93
  5. Step 5: Solve for x
    x = 1,120,210,993,101.93/1,591,319.24
  6. Step 6: Final answer
    x = 703,951.14

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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.