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Finding the Fourth Proportional to 661,610.84, 914,264.11 and 540,708.01

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Solution

The fourth proportional to 661,610.84, 914,264.11 and 540,708.01 is: 747,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,610.84 : 914,264.11 = 540,708.01 : x
  2. Step 2: Convert to fraction form
    661,610.84/914,264.11 = 540,708.01/x
  3. Step 3: Cross multiply
    661,610.84x = 914,264.11 × 540,708.01
  4. Step 4: Simplify right side
    661,610.84x = 494,349,925,922.75
  5. Step 5: Solve for x
    x = 494,349,925,922.75/661,610.84
  6. Step 6: Final answer
    x = 747,191.40

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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.