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Finding the Fourth Proportional to 344,095.90, 515,561.46 and 210,697.61

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Solution

The fourth proportional to 344,095.90, 515,561.46 and 210,697.61 is: 315,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,095.90 : 515,561.46 = 210,697.61 : x
  2. Step 2: Convert to fraction form
    344,095.90/515,561.46 = 210,697.61/x
  3. Step 3: Cross multiply
    344,095.90x = 515,561.46 × 210,697.61
  4. Step 4: Simplify right side
    344,095.90x = 108,627,564,062.19
  5. Step 5: Solve for x
    x = 108,627,564,062.19/344,095.90
  6. Step 6: Final answer
    x = 315,689.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.