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Finding the Fourth Proportional to 677,777.76, 935,332.92 and 371,856.15

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Solution

The fourth proportional to 677,777.76, 935,332.92 and 371,856.15 is: 513,161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,777.76 : 935,332.92 = 371,856.15 : x
  2. Step 2: Convert to fraction form
    677,777.76/935,332.92 = 371,856.15/x
  3. Step 3: Cross multiply
    677,777.76x = 935,332.92 × 371,856.15
  4. Step 4: Simplify right side
    677,777.76x = 347,809,298,599.46
  5. Step 5: Solve for x
    x = 347,809,298,599.46/677,777.76
  6. Step 6: Final answer
    x = 513,161.27

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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.