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Finding the Fourth Proportional to 573,046.47, 859,598.27 and 218,088

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Solution

The fourth proportional to 573,046.47, 859,598.27 and 218,088 is: 327,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,046.47 : 859,598.27 = 218,088 : x
  2. Step 2: Convert to fraction form
    573,046.47/859,598.27 = 218,088/x
  3. Step 3: Cross multiply
    573,046.47x = 859,598.27 × 218,088
  4. Step 4: Simplify right side
    573,046.47x = 187,468,066,417.32
  5. Step 5: Solve for x
    x = 187,468,066,417.32/573,046.47
  6. Step 6: Final answer
    x = 327,142.87

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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.