Home / 563,714.93-777,934.25-309,065.57

Finding the Fourth Proportional to 563,714.93, 777,934.25 and 309,065.57

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Solution

The fourth proportional to 563,714.93, 777,934.25 and 309,065.57 is: 426,514.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,714.93 : 777,934.25 = 309,065.57 : x
  2. Step 2: Convert to fraction form
    563,714.93/777,934.25 = 309,065.57/x
  3. Step 3: Cross multiply
    563,714.93x = 777,934.25 × 309,065.57
  4. Step 4: Simplify right side
    563,714.93x = 240,432,690,853.45
  5. Step 5: Solve for x
    x = 240,432,690,853.45/563,714.93
  6. Step 6: Final answer
    x = 426,514.68

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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.