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Finding the Fourth Proportional to 677,805.76, 935,340.37 and 371,875.24

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Solution

The fourth proportional to 677,805.76, 935,340.37 and 371,875.24 is: 513,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,805.76 : 935,340.37 = 371,875.24 : x
  2. Step 2: Convert to fraction form
    677,805.76/935,340.37 = 371,875.24/x
  3. Step 3: Cross multiply
    677,805.76x = 935,340.37 × 371,875.24
  4. Step 4: Simplify right side
    677,805.76x = 347,829,924,575.44
  5. Step 5: Solve for x
    x = 347,829,924,575.44/677,805.76
  6. Step 6: Final answer
    x = 513,170.51

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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.