Home / 869,100.06-1,199,354.28-487,126.86

Finding the Fourth Proportional to 869,100.06, 1,199,354.28 and 487,126.86

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Solution

The fourth proportional to 869,100.06, 1,199,354.28 and 487,126.86 is: 672,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,100.06 : 1,199,354.28 = 487,126.86 : x
  2. Step 2: Convert to fraction form
    869,100.06/1,199,354.28 = 487,126.86/x
  3. Step 3: Cross multiply
    869,100.06x = 1,199,354.28 × 487,126.86
  4. Step 4: Simplify right side
    869,100.06x = 584,237,684,443.96
  5. Step 5: Solve for x
    x = 584,237,684,443.96/869,100.06
  6. Step 6: Final answer
    x = 672,232.94

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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.