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Finding the Fourth Proportional to 614,871.21, 916,194.45 and 547,795.95

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Solution

The fourth proportional to 614,871.21, 916,194.45 and 547,795.95 is: 816,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,871.21 : 916,194.45 = 547,795.95 : x
  2. Step 2: Convert to fraction form
    614,871.21/916,194.45 = 547,795.95/x
  3. Step 3: Cross multiply
    614,871.21x = 916,194.45 × 547,795.95
  4. Step 4: Simplify right side
    614,871.21x = 501,887,609,122.48
  5. Step 5: Solve for x
    x = 501,887,609,122.48/614,871.21
  6. Step 6: Final answer
    x = 816,248.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.