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Finding the Fourth Proportional to 479,081.98, 717,128.23 and 352,864.74

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Solution

The fourth proportional to 479,081.98, 717,128.23 and 352,864.74 is: 528,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,081.98 : 717,128.23 = 352,864.74 : x
  2. Step 2: Convert to fraction form
    479,081.98/717,128.23 = 352,864.74/x
  3. Step 3: Cross multiply
    479,081.98x = 717,128.23 × 352,864.74
  4. Step 4: Simplify right side
    479,081.98x = 253,049,266,425.61
  5. Step 5: Solve for x
    x = 253,049,266,425.61/479,081.98
  6. Step 6: Final answer
    x = 528,196.17

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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.