Home / 714,083.70-985,435.43-408,166.61

Finding the Fourth Proportional to 714,083.70, 985,435.43 and 408,166.61

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Solution

The fourth proportional to 714,083.70, 985,435.43 and 408,166.61 is: 563,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,083.70 : 985,435.43 = 408,166.61 : x
  2. Step 2: Convert to fraction form
    714,083.70/985,435.43 = 408,166.61/x
  3. Step 3: Cross multiply
    714,083.70x = 985,435.43 × 408,166.61
  4. Step 4: Simplify right side
    714,083.70x = 402,221,839,259.75
  5. Step 5: Solve for x
    x = 402,221,839,259.75/714,083.70
  6. Step 6: Final answer
    x = 563,269.88

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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.