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Finding the Fourth Proportional to 574,512.46, 859,368.12 and 403,721.80

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Solution

The fourth proportional to 574,512.46, 859,368.12 and 403,721.80 is: 603,895.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,512.46 : 859,368.12 = 403,721.80 : x
  2. Step 2: Convert to fraction form
    574,512.46/859,368.12 = 403,721.80/x
  3. Step 3: Cross multiply
    574,512.46x = 859,368.12 × 403,721.80
  4. Step 4: Simplify right side
    574,512.46x = 346,945,644,269.02
  5. Step 5: Solve for x
    x = 346,945,644,269.02/574,512.46
  6. Step 6: Final answer
    x = 603,895.77

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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.