Home / 676,853.23-933,956.54-418,989.55

Finding the Fourth Proportional to 676,853.23, 933,956.54 and 418,989.55

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Solution

The fourth proportional to 676,853.23, 933,956.54 and 418,989.55 is: 578,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,853.23 : 933,956.54 = 418,989.55 : x
  2. Step 2: Convert to fraction form
    676,853.23/933,956.54 = 418,989.55/x
  3. Step 3: Cross multiply
    676,853.23x = 933,956.54 × 418,989.55
  4. Step 4: Simplify right side
    676,853.23x = 391,318,027,555.53
  5. Step 5: Solve for x
    x = 391,318,027,555.53/676,853.23
  6. Step 6: Final answer
    x = 578,143.11

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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.