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Finding the Fourth Proportional to 935,754.70, 1,402,655.12 and 678,966.88

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Solution

The fourth proportional to 935,754.70, 1,402,655.12 and 678,966.88 is: 1,017,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,754.70 : 1,402,655.12 = 678,966.88 : x
  2. Step 2: Convert to fraction form
    935,754.70/1,402,655.12 = 678,966.88/x
  3. Step 3: Cross multiply
    935,754.70x = 1,402,655.12 × 678,966.88
  4. Step 4: Simplify right side
    935,754.70x = 952,356,370,542.43
  5. Step 5: Solve for x
    x = 952,356,370,542.43/935,754.70
  6. Step 6: Final answer
    x = 1,017,741.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.