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Finding the Fourth Proportional to 626,900.04, 865,132.11 and 354,960.66

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Solution

The fourth proportional to 626,900.04, 865,132.11 and 354,960.66 is: 489,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,900.04 : 865,132.11 = 354,960.66 : x
  2. Step 2: Convert to fraction form
    626,900.04/865,132.11 = 354,960.66/x
  3. Step 3: Cross multiply
    626,900.04x = 865,132.11 × 354,960.66
  4. Step 4: Simplify right side
    626,900.04x = 307,087,867,997.04
  5. Step 5: Solve for x
    x = 307,087,867,997.04/626,900.04
  6. Step 6: Final answer
    x = 489,851.41

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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.