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Finding the Fourth Proportional to 677,686.07, 935,213.97 and 371,763.03

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Solution

The fourth proportional to 677,686.07, 935,213.97 and 371,763.03 is: 513,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,686.07 : 935,213.97 = 371,763.03 : x
  2. Step 2: Convert to fraction form
    677,686.07/935,213.97 = 371,763.03/x
  3. Step 3: Cross multiply
    677,686.07x = 935,213.97 × 371,763.03
  4. Step 4: Simplify right side
    677,686.07x = 347,677,979,185.53
  5. Step 5: Solve for x
    x = 347,677,979,185.53/677,686.07
  6. Step 6: Final answer
    x = 513,036.93

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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.