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Finding the Fourth Proportional to 473,868.48, 710,402.88 and 221,015.76

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Solution

The fourth proportional to 473,868.48, 710,402.88 and 221,015.76 is: 331,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,868.48 : 710,402.88 = 221,015.76 : x
  2. Step 2: Convert to fraction form
    473,868.48/710,402.88 = 221,015.76/x
  3. Step 3: Cross multiply
    473,868.48x = 710,402.88 × 221,015.76
  4. Step 4: Simplify right side
    473,868.48x = 157,010,232,429.39
  5. Step 5: Solve for x
    x = 157,010,232,429.39/473,868.48
  6. Step 6: Final answer
    x = 331,337.15

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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.