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Finding the Fourth Proportional to 619,766.59, 855,279.54 and 344,124.95

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Solution

The fourth proportional to 619,766.59, 855,279.54 and 344,124.95 is: 474,893.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,766.59 : 855,279.54 = 344,124.95 : x
  2. Step 2: Convert to fraction form
    619,766.59/855,279.54 = 344,124.95/x
  3. Step 3: Cross multiply
    619,766.59x = 855,279.54 × 344,124.95
  4. Step 4: Simplify right side
    619,766.59x = 294,323,028,145.81
  5. Step 5: Solve for x
    x = 294,323,028,145.81/619,766.59
  6. Step 6: Final answer
    x = 474,893.35

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1.5x scale

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.