Home / 672,153.85-927,280.86-400,069.18

Finding the Fourth Proportional to 672,153.85, 927,280.86 and 400,069.18

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Solution

The fourth proportional to 672,153.85, 927,280.86 and 400,069.18 is: 551,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,153.85 : 927,280.86 = 400,069.18 : x
  2. Step 2: Convert to fraction form
    672,153.85/927,280.86 = 400,069.18/x
  3. Step 3: Cross multiply
    672,153.85x = 927,280.86 × 400,069.18
  4. Step 4: Simplify right side
    672,153.85x = 370,976,489,983.17
  5. Step 5: Solve for x
    x = 370,976,489,983.17/672,153.85
  6. Step 6: Final answer
    x = 551,921.99

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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.