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Finding the Fourth Proportional to 676,489.68, 933,570.84 and 386,095.41

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Solution

The fourth proportional to 676,489.68, 933,570.84 and 386,095.41 is: 532,820.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,489.68 : 933,570.84 = 386,095.41 : x
  2. Step 2: Convert to fraction form
    676,489.68/933,570.84 = 386,095.41/x
  3. Step 3: Cross multiply
    676,489.68x = 933,570.84 × 386,095.41
  4. Step 4: Simplify right side
    676,489.68x = 360,447,416,233.84
  5. Step 5: Solve for x
    x = 360,447,416,233.84/676,489.68
  6. Step 6: Final answer
    x = 532,820.27

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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.