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Finding the Fourth Proportional to 676,106.40, 933,046.80 and 374,300.40

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Solution

The fourth proportional to 676,106.40, 933,046.80 and 374,300.40 is: 516,545.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,106.40 : 933,046.80 = 374,300.40 : x
  2. Step 2: Convert to fraction form
    676,106.40/933,046.80 = 374,300.40/x
  3. Step 3: Cross multiply
    676,106.40x = 933,046.80 × 374,300.40
  4. Step 4: Simplify right side
    676,106.40x = 349,239,790,458.72
  5. Step 5: Solve for x
    x = 349,239,790,458.72/676,106.40
  6. Step 6: Final answer
    x = 516,545.61

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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.