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Finding the Fourth Proportional to 626,948.60, 865,206.20 and 368,843.72

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Solution

The fourth proportional to 626,948.60, 865,206.20 and 368,843.72 is: 509,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,948.60 : 865,206.20 = 368,843.72 : x
  2. Step 2: Convert to fraction form
    626,948.60/865,206.20 = 368,843.72/x
  3. Step 3: Cross multiply
    626,948.60x = 865,206.20 × 368,843.72
  4. Step 4: Simplify right side
    626,948.60x = 319,125,873,375.06
  5. Step 5: Solve for x
    x = 319,125,873,375.06/626,948.60
  6. Step 6: Final answer
    x = 509,014.41

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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.