Home / 511,406.27-767,140.16-156,423.36

Finding the Fourth Proportional to 511,406.27, 767,140.16 and 156,423.36

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Solution

The fourth proportional to 511,406.27, 767,140.16 and 156,423.36 is: 234,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,406.27 : 767,140.16 = 156,423.36 : x
  2. Step 2: Convert to fraction form
    511,406.27/767,140.16 = 156,423.36/x
  3. Step 3: Cross multiply
    511,406.27x = 767,140.16 × 156,423.36
  4. Step 4: Simplify right side
    511,406.27x = 119,998,641,418.14
  5. Step 5: Solve for x
    x = 119,998,641,418.14/511,406.27
  6. Step 6: Final answer
    x = 234,644.45

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1.5x scale

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.