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Finding the Fourth Proportional to 617,886.93, 926,475.18 and 329,343.15

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Solution

The fourth proportional to 617,886.93, 926,475.18 and 329,343.15 is: 493,825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,886.93 : 926,475.18 = 329,343.15 : x
  2. Step 2: Convert to fraction form
    617,886.93/926,475.18 = 329,343.15/x
  3. Step 3: Cross multiply
    617,886.93x = 926,475.18 × 329,343.15
  4. Step 4: Simplify right side
    617,886.93x = 305,128,254,178.02
  5. Step 5: Solve for x
    x = 305,128,254,178.02/617,886.93
  6. Step 6: Final answer
    x = 493,825.39

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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.