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Finding the Fourth Proportional to 697,127.79, 962,033.63 and 391,203.39

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Solution

The fourth proportional to 697,127.79, 962,033.63 and 391,203.39 is: 539,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,127.79 : 962,033.63 = 391,203.39 : x
  2. Step 2: Convert to fraction form
    697,127.79/962,033.63 = 391,203.39/x
  3. Step 3: Cross multiply
    697,127.79x = 962,033.63 × 391,203.39
  4. Step 4: Simplify right side
    697,127.79x = 376,350,815,393.99
  5. Step 5: Solve for x
    x = 376,350,815,393.99/697,127.79
  6. Step 6: Final answer
    x = 539,859.15

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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.