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Finding the Fourth Proportional to 556,636.38, 834,830.64 and 157,314.48

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Solution

The fourth proportional to 556,636.38, 834,830.64 and 157,314.48 is: 235,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,636.38 : 834,830.64 = 157,314.48 : x
  2. Step 2: Convert to fraction form
    556,636.38/834,830.64 = 157,314.48/x
  3. Step 3: Cross multiply
    556,636.38x = 834,830.64 × 157,314.48
  4. Step 4: Simplify right side
    556,636.38x = 131,330,948,019.67
  5. Step 5: Solve for x
    x = 131,330,948,019.67/556,636.38
  6. Step 6: Final answer
    x = 235,936.70

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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.