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Finding the Fourth Proportional to 502,620.48, 753,521.28 and 277,971.84

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Solution

The fourth proportional to 502,620.48, 753,521.28 and 277,971.84 is: 416,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,620.48 : 753,521.28 = 277,971.84 : x
  2. Step 2: Convert to fraction form
    502,620.48/753,521.28 = 277,971.84/x
  3. Step 3: Cross multiply
    502,620.48x = 753,521.28 × 277,971.84
  4. Step 4: Simplify right side
    502,620.48x = 209,457,696,680.76
  5. Step 5: Solve for x
    x = 209,457,696,680.76/502,620.48
  6. Step 6: Final answer
    x = 416,731.32

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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.