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Finding the Fourth Proportional to 641,386.88, 962,412.15 and 465,346.88

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Solution

The fourth proportional to 641,386.88, 962,412.15 and 465,346.88 is: 698,261.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,386.88 : 962,412.15 = 465,346.88 : x
  2. Step 2: Convert to fraction form
    641,386.88/962,412.15 = 465,346.88/x
  3. Step 3: Cross multiply
    641,386.88x = 962,412.15 × 465,346.88
  4. Step 4: Simplify right side
    641,386.88x = 447,855,491,276.59
  5. Step 5: Solve for x
    x = 447,855,491,276.59/641,386.88
  6. Step 6: Final answer
    x = 698,261.07

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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.