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Finding the Fourth Proportional to 540,712.17, 810,358.71 and 397,888.68

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Solution

The fourth proportional to 540,712.17, 810,358.71 and 397,888.68 is: 596,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,712.17 : 810,358.71 = 397,888.68 : x
  2. Step 2: Convert to fraction form
    540,712.17/810,358.71 = 397,888.68/x
  3. Step 3: Cross multiply
    540,712.17x = 810,358.71 × 397,888.68
  4. Step 4: Simplify right side
    540,712.17x = 322,432,557,448.40
  5. Step 5: Solve for x
    x = 322,432,557,448.40/540,712.17
  6. Step 6: Final answer
    x = 596,310.89

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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.