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Finding the Fourth Proportional to 371,123.12, 556,785.12 and 264,641.60

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Solution

The fourth proportional to 371,123.12, 556,785.12 and 264,641.60 is: 397,034.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,123.12 : 556,785.12 = 264,641.60 : x
  2. Step 2: Convert to fraction form
    371,123.12/556,785.12 = 264,641.60/x
  3. Step 3: Cross multiply
    371,123.12x = 556,785.12 × 264,641.60
  4. Step 4: Simplify right side
    371,123.12x = 147,348,505,012.99
  5. Step 5: Solve for x
    x = 147,348,505,012.99/371,123.12
  6. Step 6: Final answer
    x = 397,034.02

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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.