Home / 981,626.23-1,355,030.13-618,977.89

Finding the Fourth Proportional to 981,626.23, 1,355,030.13 and 618,977.89

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Solution

The fourth proportional to 981,626.23, 1,355,030.13 and 618,977.89 is: 854,432.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,626.23 : 1,355,030.13 = 618,977.89 : x
  2. Step 2: Convert to fraction form
    981,626.23/1,355,030.13 = 618,977.89/x
  3. Step 3: Cross multiply
    981,626.23x = 1,355,030.13 × 618,977.89
  4. Step 4: Simplify right side
    981,626.23x = 838,733,690,753.83
  5. Step 5: Solve for x
    x = 838,733,690,753.83/981,626.23
  6. Step 6: Final answer
    x = 854,432.84

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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.