Home / 514,981.40-710,747.86-285,589.70

Finding the Fourth Proportional to 514,981.40, 710,747.86 and 285,589.70

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Solution

The fourth proportional to 514,981.40, 710,747.86 and 285,589.70 is: 394,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,981.40 : 710,747.86 = 285,589.70 : x
  2. Step 2: Convert to fraction form
    514,981.40/710,747.86 = 285,589.70/x
  3. Step 3: Cross multiply
    514,981.40x = 710,747.86 × 285,589.70
  4. Step 4: Simplify right side
    514,981.40x = 202,982,263,845.33
  5. Step 5: Solve for x
    x = 202,982,263,845.33/514,981.40
  6. Step 6: Final answer
    x = 394,154.56

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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.