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Finding the Fourth Proportional to 586,838.47, 880,584.69 and 316,961.15

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Solution

The fourth proportional to 586,838.47, 880,584.69 and 316,961.15 is: 475,618.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,838.47 : 880,584.69 = 316,961.15 : x
  2. Step 2: Convert to fraction form
    586,838.47/880,584.69 = 316,961.15/x
  3. Step 3: Cross multiply
    586,838.47x = 880,584.69 × 316,961.15
  4. Step 4: Simplify right side
    586,838.47x = 279,111,136,862.31
  5. Step 5: Solve for x
    x = 279,111,136,862.31/586,838.47
  6. Step 6: Final answer
    x = 475,618.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.