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Finding the Fourth Proportional to 587,779.26, 810,384.54 and 380,681.82

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Solution

The fourth proportional to 587,779.26, 810,384.54 and 380,681.82 is: 524,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,779.26 : 810,384.54 = 380,681.82 : x
  2. Step 2: Convert to fraction form
    587,779.26/810,384.54 = 380,681.82/x
  3. Step 3: Cross multiply
    587,779.26x = 810,384.54 × 380,681.82
  4. Step 4: Simplify right side
    587,779.26x = 308,498,661,587.06
  5. Step 5: Solve for x
    x = 308,498,661,587.06/587,779.26
  6. Step 6: Final answer
    x = 524,854.62

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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.