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Finding the Fourth Proportional to 671,875.74, 927,121.26 and 413,711.32

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Solution

The fourth proportional to 671,875.74, 927,121.26 and 413,711.32 is: 570,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,875.74 : 927,121.26 = 413,711.32 : x
  2. Step 2: Convert to fraction form
    671,875.74/927,121.26 = 413,711.32/x
  3. Step 3: Cross multiply
    671,875.74x = 927,121.26 × 413,711.32
  4. Step 4: Simplify right side
    671,875.74x = 383,560,560,274.66
  5. Step 5: Solve for x
    x = 383,560,560,274.66/671,875.74
  6. Step 6: Final answer
    x = 570,880.21

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Double scale
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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.