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Finding the Fourth Proportional to 697,155.84, 962,094.22 and 391,251

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Solution

The fourth proportional to 697,155.84, 962,094.22 and 391,251 is: 539,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,155.84 : 962,094.22 = 391,251 : x
  2. Step 2: Convert to fraction form
    697,155.84/962,094.22 = 391,251/x
  3. Step 3: Cross multiply
    697,155.84x = 962,094.22 × 391,251
  4. Step 4: Simplify right side
    697,155.84x = 376,420,325,669.22
  5. Step 5: Solve for x
    x = 376,420,325,669.22/697,155.84
  6. Step 6: Final answer
    x = 539,937.13

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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.