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Finding the Fourth Proportional to 626,903.55, 865,264.68 and 412,063.61

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Solution

The fourth proportional to 626,903.55, 865,264.68 and 412,063.61 is: 568,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,903.55 : 865,264.68 = 412,063.61 : x
  2. Step 2: Convert to fraction form
    626,903.55/865,264.68 = 412,063.61/x
  3. Step 3: Cross multiply
    626,903.55x = 865,264.68 × 412,063.61
  4. Step 4: Simplify right side
    626,903.55x = 356,544,083,319.97
  5. Step 5: Solve for x
    x = 356,544,083,319.97/626,903.55
  6. Step 6: Final answer
    x = 568,738.34

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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.