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Finding the Fourth Proportional to 935,751.69, 1,402,650.63 and 678,963.87

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Solution

The fourth proportional to 935,751.69, 1,402,650.63 and 678,963.87 is: 1,017,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,751.69 : 1,402,650.63 = 678,963.87 : x
  2. Step 2: Convert to fraction form
    935,751.69/1,402,650.63 = 678,963.87/x
  3. Step 3: Cross multiply
    935,751.69x = 1,402,650.63 × 678,963.87
  4. Step 4: Simplify right side
    935,751.69x = 952,349,100,002.74
  5. Step 5: Solve for x
    x = 952,349,100,002.74/935,751.69
  6. Step 6: Final answer
    x = 1,017,736.98

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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.