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Finding the Fourth Proportional to 837,655.16, 1,247,008.64 and 832,672.91

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Solution

The fourth proportional to 837,655.16, 1,247,008.64 and 832,672.91 is: 1,239,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,655.16 : 1,247,008.64 = 832,672.91 : x
  2. Step 2: Convert to fraction form
    837,655.16/1,247,008.64 = 832,672.91/x
  3. Step 3: Cross multiply
    837,655.16x = 1,247,008.64 × 832,672.91
  4. Step 4: Simplify right side
    837,655.16x = 1,038,350,312,018.10
  5. Step 5: Solve for x
    x = 1,038,350,312,018.10/837,655.16
  6. Step 6: Final answer
    x = 1,239,591.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.