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Finding the Fourth Proportional to 556,368.70, 834,419.40 and 157,046.80

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Solution

The fourth proportional to 556,368.70, 834,419.40 and 157,046.80 is: 235,532.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,368.70 : 834,419.40 = 157,046.80 : x
  2. Step 2: Convert to fraction form
    556,368.70/834,419.40 = 157,046.80/x
  3. Step 3: Cross multiply
    556,368.70x = 834,419.40 × 157,046.80
  4. Step 4: Simplify right side
    556,368.70x = 131,042,896,627.92
  5. Step 5: Solve for x
    x = 131,042,896,627.92/556,368.70
  6. Step 6: Final answer
    x = 235,532.47

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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.