Home / 696,359.20-960,622-454,783.18

Finding the Fourth Proportional to 696,359.20, 960,622 and 454,783.18

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Solution

The fourth proportional to 696,359.20, 960,622 and 454,783.18 is: 627,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,359.20 : 960,622 = 454,783.18 : x
  2. Step 2: Convert to fraction form
    696,359.20/960,622 = 454,783.18/x
  3. Step 3: Cross multiply
    696,359.20x = 960,622 × 454,783.18
  4. Step 4: Simplify right side
    696,359.20x = 436,874,727,937.96
  5. Step 5: Solve for x
    x = 436,874,727,937.96/696,359.20
  6. Step 6: Final answer
    x = 627,369.79

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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.