Home / 811,177.12-1,119,395.08-443,641.72

Finding the Fourth Proportional to 811,177.12, 1,119,395.08 and 443,641.72

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Solution

The fourth proportional to 811,177.12, 1,119,395.08 and 443,641.72 is: 612,209.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,177.12 : 1,119,395.08 = 443,641.72 : x
  2. Step 2: Convert to fraction form
    811,177.12/1,119,395.08 = 443,641.72/x
  3. Step 3: Cross multiply
    811,177.12x = 1,119,395.08 × 443,641.72
  4. Step 4: Simplify right side
    811,177.12x = 496,610,358,650.74
  5. Step 5: Solve for x
    x = 496,610,358,650.74/811,177.12
  6. Step 6: Final answer
    x = 612,209.52

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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.