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Finding the Fourth Proportional to 662,830.92, 914,717.34 and 376,358.76

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Solution

The fourth proportional to 662,830.92, 914,717.34 and 376,358.76 is: 519,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,830.92 : 914,717.34 = 376,358.76 : x
  2. Step 2: Convert to fraction form
    662,830.92/914,717.34 = 376,358.76/x
  3. Step 3: Cross multiply
    662,830.92x = 914,717.34 × 376,358.76
  4. Step 4: Simplify right side
    662,830.92x = 344,261,883,832.90
  5. Step 5: Solve for x
    x = 344,261,883,832.90/662,830.92
  6. Step 6: Final answer
    x = 519,381.15

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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.