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Finding the Fourth Proportional to 819,602.70, 1,229,404.05 and 714,626.70

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Solution

The fourth proportional to 819,602.70, 1,229,404.05 and 714,626.70 is: 1,071,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,602.70 : 1,229,404.05 = 714,626.70 : x
  2. Step 2: Convert to fraction form
    819,602.70/1,229,404.05 = 714,626.70/x
  3. Step 3: Cross multiply
    819,602.70x = 1,229,404.05 × 714,626.70
  4. Step 4: Simplify right side
    819,602.70x = 878,564,959,218.14
  5. Step 5: Solve for x
    x = 878,564,959,218.14/819,602.70
  6. Step 6: Final answer
    x = 1,071,940.05

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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.