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Finding the Fourth Proportional to 528,900.24, 729,702.09 and 338,023.74

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Solution

The fourth proportional to 528,900.24, 729,702.09 and 338,023.74 is: 466,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,900.24 : 729,702.09 = 338,023.74 : x
  2. Step 2: Convert to fraction form
    528,900.24/729,702.09 = 338,023.74/x
  3. Step 3: Cross multiply
    528,900.24x = 729,702.09 × 338,023.74
  4. Step 4: Simplify right side
    528,900.24x = 246,656,629,547.62
  5. Step 5: Solve for x
    x = 246,656,629,547.62/528,900.24
  6. Step 6: Final answer
    x = 466,357.57

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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.