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Finding the Fourth Proportional to 677,681.64, 935,213.14 and 371,773.64

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Solution

The fourth proportional to 677,681.64, 935,213.14 and 371,773.64 is: 513,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,681.64 : 935,213.14 = 371,773.64 : x
  2. Step 2: Convert to fraction form
    677,681.64/935,213.14 = 371,773.64/x
  3. Step 3: Cross multiply
    677,681.64x = 935,213.14 × 371,773.64
  4. Step 4: Simplify right side
    677,681.64x = 347,687,593,233.63
  5. Step 5: Solve for x
    x = 347,687,593,233.63/677,681.64
  6. Step 6: Final answer
    x = 513,054.47

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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.