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Finding the Fourth Proportional to 587,782.19, 811,148.13 and 342,760.13

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Solution

The fourth proportional to 587,782.19, 811,148.13 and 342,760.13 is: 473,014.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,782.19 : 811,148.13 = 342,760.13 : x
  2. Step 2: Convert to fraction form
    587,782.19/811,148.13 = 342,760.13/x
  3. Step 3: Cross multiply
    587,782.19x = 811,148.13 × 342,760.13
  4. Step 4: Simplify right side
    587,782.19x = 278,029,238,488.06
  5. Step 5: Solve for x
    x = 278,029,238,488.06/587,782.19
  6. Step 6: Final answer
    x = 473,014.06

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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.