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Finding the Fourth Proportional to 676,632.59, 933,523.11 and 386,035.40

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Solution

The fourth proportional to 676,632.59, 933,523.11 and 386,035.40 is: 532,597.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,632.59 : 933,523.11 = 386,035.40 : x
  2. Step 2: Convert to fraction form
    676,632.59/933,523.11 = 386,035.40/x
  3. Step 3: Cross multiply
    676,632.59x = 933,523.11 × 386,035.40
  4. Step 4: Simplify right side
    676,632.59x = 360,372,969,511.90
  5. Step 5: Solve for x
    x = 360,372,969,511.90/676,632.59
  6. Step 6: Final answer
    x = 532,597.71

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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.