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Finding the Fourth Proportional to 675,993.32, 932,870.79 and 374,187.32

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Solution

The fourth proportional to 675,993.32, 932,870.79 and 374,187.32 is: 516,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,993.32 : 932,870.79 = 374,187.32 : x
  2. Step 2: Convert to fraction form
    675,993.32/932,870.79 = 374,187.32/x
  3. Step 3: Cross multiply
    675,993.32x = 932,870.79 × 374,187.32
  4. Step 4: Simplify right side
    675,993.32x = 349,068,414,281.09
  5. Step 5: Solve for x
    x = 349,068,414,281.09/675,993.32
  6. Step 6: Final answer
    x = 516,378.50

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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.