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Finding the Fourth Proportional to 588,560.28, 812,157 and 330,378.06

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Solution

The fourth proportional to 588,560.28, 812,157 and 330,378.06 is: 455,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,560.28 : 812,157 = 330,378.06 : x
  2. Step 2: Convert to fraction form
    588,560.28/812,157 = 330,378.06/x
  3. Step 3: Cross multiply
    588,560.28x = 812,157 × 330,378.06
  4. Step 4: Simplify right side
    588,560.28x = 268,318,854,075.42
  5. Step 5: Solve for x
    x = 268,318,854,075.42/588,560.28
  6. Step 6: Final answer
    x = 455,890.18

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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.