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Finding the Fourth Proportional to 478,590.42, 717,706.86 and 158,683.62

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Solution

The fourth proportional to 478,590.42, 717,706.86 and 158,683.62 is: 237,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,590.42 : 717,706.86 = 158,683.62 : x
  2. Step 2: Convert to fraction form
    478,590.42/717,706.86 = 158,683.62/x
  3. Step 3: Cross multiply
    478,590.42x = 717,706.86 × 158,683.62
  4. Step 4: Simplify right side
    478,590.42x = 113,888,322,643.63
  5. Step 5: Solve for x
    x = 113,888,322,643.63/478,590.42
  6. Step 6: Final answer
    x = 237,966.16

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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.