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Finding the Fourth Proportional to 3,270,572.16, 4,905,824.76 and 841,715.90

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Solution

The fourth proportional to 3,270,572.16, 4,905,824.76 and 841,715.90 is: 1,262,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270,572.16 : 4,905,824.76 = 841,715.90 : x
  2. Step 2: Convert to fraction form
    3,270,572.16/4,905,824.76 = 841,715.90/x
  3. Step 3: Cross multiply
    3,270,572.16x = 4,905,824.76 × 841,715.90
  4. Step 4: Simplify right side
    3,270,572.16x = 4,129,310,703,105.68
  5. Step 5: Solve for x
    x = 4,129,310,703,105.68/3,270,572.16
  6. Step 6: Final answer
    x = 1,262,565.23

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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.