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Finding the Fourth Proportional to 936,512.70, 1,402,695.45 and 770,624.70

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Solution

The fourth proportional to 936,512.70, 1,402,695.45 and 770,624.70 is: 1,154,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,512.70 : 1,402,695.45 = 770,624.70 : x
  2. Step 2: Convert to fraction form
    936,512.70/1,402,695.45 = 770,624.70/x
  3. Step 3: Cross multiply
    936,512.70x = 1,402,695.45 × 770,624.70
  4. Step 4: Simplify right side
    936,512.70x = 1,080,951,760,347.61
  5. Step 5: Solve for x
    x = 1,080,951,760,347.61/936,512.70
  6. Step 6: Final answer
    x = 1,154,230.75

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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.