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Finding the Fourth Proportional to 646,998.60, 970,497.90 and 591,011.40

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Solution

The fourth proportional to 646,998.60, 970,497.90 and 591,011.40 is: 886,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,998.60 : 970,497.90 = 591,011.40 : x
  2. Step 2: Convert to fraction form
    646,998.60/970,497.90 = 591,011.40/x
  3. Step 3: Cross multiply
    646,998.60x = 970,497.90 × 591,011.40
  4. Step 4: Simplify right side
    646,998.60x = 573,575,322,576.06
  5. Step 5: Solve for x
    x = 573,575,322,576.06/646,998.60
  6. Step 6: Final answer
    x = 886,517.10

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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.