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Finding the Fourth Proportional to 626,835.06, 865,008.12 and 340,348.59

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Solution

The fourth proportional to 626,835.06, 865,008.12 and 340,348.59 is: 469,667.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,835.06 : 865,008.12 = 340,348.59 : x
  2. Step 2: Convert to fraction form
    626,835.06/865,008.12 = 340,348.59/x
  3. Step 3: Cross multiply
    626,835.06x = 865,008.12 × 340,348.59
  4. Step 4: Simplify right side
    626,835.06x = 294,404,293,980.55
  5. Step 5: Solve for x
    x = 294,404,293,980.55/626,835.06
  6. Step 6: Final answer
    x = 469,667.88

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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.