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Finding the Fourth Proportional to 697,253.67, 962,169.62 and 391,301.48

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Solution

The fourth proportional to 697,253.67, 962,169.62 and 391,301.48 is: 539,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,253.67 : 962,169.62 = 391,301.48 : x
  2. Step 2: Convert to fraction form
    697,253.67/962,169.62 = 391,301.48/x
  3. Step 3: Cross multiply
    697,253.67x = 962,169.62 × 391,301.48
  4. Step 4: Simplify right side
    697,253.67x = 376,498,389,549.68
  5. Step 5: Solve for x
    x = 376,498,389,549.68/697,253.67
  6. Step 6: Final answer
    x = 539,973.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.