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Finding the Fourth Proportional to 536,708.93, 740,645.90 and 291,687.93

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Solution

The fourth proportional to 536,708.93, 740,645.90 and 291,687.93 is: 402,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,708.93 : 740,645.90 = 291,687.93 : x
  2. Step 2: Convert to fraction form
    536,708.93/740,645.90 = 291,687.93/x
  3. Step 3: Cross multiply
    536,708.93x = 740,645.90 × 291,687.93
  4. Step 4: Simplify right side
    536,708.93x = 216,037,467,975.55
  5. Step 5: Solve for x
    x = 216,037,467,975.55/536,708.93
  6. Step 6: Final answer
    x = 402,522.59

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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.