Home / 810,951.60-1,216,927.66-411,878.76

Finding the Fourth Proportional to 810,951.60, 1,216,927.66 and 411,878.76

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Solution

The fourth proportional to 810,951.60, 1,216,927.66 and 411,878.76 is: 618,072.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,951.60 : 1,216,927.66 = 411,878.76 : x
  2. Step 2: Convert to fraction form
    810,951.60/1,216,927.66 = 411,878.76/x
  3. Step 3: Cross multiply
    810,951.60x = 1,216,927.66 × 411,878.76
  4. Step 4: Simplify right side
    810,951.60x = 501,226,655,610.50
  5. Step 5: Solve for x
    x = 501,226,655,610.50/810,951.60
  6. Step 6: Final answer
    x = 618,072.22

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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.