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Finding the Fourth Proportional to 528,561.55, 729,053.66 and 337,488.83

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Solution

The fourth proportional to 528,561.55, 729,053.66 and 337,488.83 is: 465,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,561.55 : 729,053.66 = 337,488.83 : x
  2. Step 2: Convert to fraction form
    528,561.55/729,053.66 = 337,488.83/x
  3. Step 3: Cross multiply
    528,561.55x = 729,053.66 × 337,488.83
  4. Step 4: Simplify right side
    528,561.55x = 246,047,466,653.02
  5. Step 5: Solve for x
    x = 246,047,466,653.02/528,561.55
  6. Step 6: Final answer
    x = 465,503.91

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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.