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Finding the Fourth Proportional to 478,166.17, 659,868.27 and 260,371.46

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Solution

The fourth proportional to 478,166.17, 659,868.27 and 260,371.46 is: 359,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,166.17 : 659,868.27 = 260,371.46 : x
  2. Step 2: Convert to fraction form
    478,166.17/659,868.27 = 260,371.46/x
  3. Step 3: Cross multiply
    478,166.17x = 659,868.27 × 260,371.46
  4. Step 4: Simplify right side
    478,166.17x = 171,810,865,357.78
  5. Step 5: Solve for x
    x = 171,810,865,357.78/478,166.17
  6. Step 6: Final answer
    x = 359,312.04

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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.