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Finding the Fourth Proportional to 677,887.59, 935,484.21 and 371,965.71

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Solution

The fourth proportional to 677,887.59, 935,484.21 and 371,965.71 is: 513,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,887.59 : 935,484.21 = 371,965.71 : x
  2. Step 2: Convert to fraction form
    677,887.59/935,484.21 = 371,965.71/x
  3. Step 3: Cross multiply
    677,887.59x = 935,484.21 × 371,965.71
  4. Step 4: Simplify right side
    677,887.59x = 347,968,048,366.44
  5. Step 5: Solve for x
    x = 347,968,048,366.44/677,887.59
  6. Step 6: Final answer
    x = 513,312.32

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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.