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Finding the Fourth Proportional to 2,164,318.02, 2,986,846.79 and 1,197,432.59

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Solution

The fourth proportional to 2,164,318.02, 2,986,846.79 and 1,197,432.59 is: 1,652,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164,318.02 : 2,986,846.79 = 1,197,432.59 : x
  2. Step 2: Convert to fraction form
    2,164,318.02/2,986,846.79 = 1,197,432.59/x
  3. Step 3: Cross multiply
    2,164,318.02x = 2,986,846.79 × 1,197,432.59
  4. Step 4: Simplify right side
    2,164,318.02x = 3,576,547,666,761.49
  5. Step 5: Solve for x
    x = 3,576,547,666,761.49/2,164,318.02
  6. Step 6: Final answer
    x = 1,652,505.61

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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.