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Finding the Fourth Proportional to 586,816.26, 810,302.85 and 372,336.90

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Solution

The fourth proportional to 586,816.26, 810,302.85 and 372,336.90 is: 514,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,816.26 : 810,302.85 = 372,336.90 : x
  2. Step 2: Convert to fraction form
    586,816.26/810,302.85 = 372,336.90/x
  3. Step 3: Cross multiply
    586,816.26x = 810,302.85 × 372,336.90
  4. Step 4: Simplify right side
    586,816.26x = 301,705,651,230.17
  5. Step 5: Solve for x
    x = 301,705,651,230.17/586,816.26
  6. Step 6: Final answer
    x = 514,139.90

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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.