Home / 840,518.80-1,159,913.34-458,542.85

Finding the Fourth Proportional to 840,518.80, 1,159,913.34 and 458,542.85

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Solution

The fourth proportional to 840,518.80, 1,159,913.34 and 458,542.85 is: 632,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,518.80 : 1,159,913.34 = 458,542.85 : x
  2. Step 2: Convert to fraction form
    840,518.80/1,159,913.34 = 458,542.85/x
  3. Step 3: Cross multiply
    840,518.80x = 1,159,913.34 × 458,542.85
  4. Step 4: Simplify right side
    840,518.80x = 531,869,962,877.05
  5. Step 5: Solve for x
    x = 531,869,962,877.05/840,518.80
  6. Step 6: Final answer
    x = 632,787.71

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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.