Home / 865,761.48-1,298,814.45-266,697.09

Finding the Fourth Proportional to 865,761.48, 1,298,814.45 and 266,697.09

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Solution

The fourth proportional to 865,761.48, 1,298,814.45 and 266,697.09 is: 400,098.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,761.48 : 1,298,814.45 = 266,697.09 : x
  2. Step 2: Convert to fraction form
    865,761.48/1,298,814.45 = 266,697.09/x
  3. Step 3: Cross multiply
    865,761.48x = 1,298,814.45 × 266,697.09
  4. Step 4: Simplify right side
    865,761.48x = 346,390,034,264.95
  5. Step 5: Solve for x
    x = 346,390,034,264.95/865,761.48
  6. Step 6: Final answer
    x = 400,098.69

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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.