Home / 709,714.85-979,275.45-403,773.37

Finding the Fourth Proportional to 709,714.85, 979,275.45 and 403,773.37

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Solution

The fourth proportional to 709,714.85, 979,275.45 and 403,773.37 is: 557,132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,714.85 : 979,275.45 = 403,773.37 : x
  2. Step 2: Convert to fraction form
    709,714.85/979,275.45 = 403,773.37/x
  3. Step 3: Cross multiply
    709,714.85x = 979,275.45 × 403,773.37
  4. Step 4: Simplify right side
    709,714.85x = 395,405,343,708.39
  5. Step 5: Solve for x
    x = 395,405,343,708.39/709,714.85
  6. Step 6: Final answer
    x = 557,132.69

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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.