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Finding the Fourth Proportional to 516,863.63, 774,766.45 and 503,897.46

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Solution

The fourth proportional to 516,863.63, 774,766.45 and 503,897.46 is: 755,330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,863.63 : 774,766.45 = 503,897.46 : x
  2. Step 2: Convert to fraction form
    516,863.63/774,766.45 = 503,897.46/x
  3. Step 3: Cross multiply
    516,863.63x = 774,766.45 × 503,897.46
  4. Step 4: Simplify right side
    516,863.63x = 390,402,843,972.72
  5. Step 5: Solve for x
    x = 390,402,843,972.72/516,863.63
  6. Step 6: Final answer
    x = 755,330.46

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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.