Home / 753,000.68-1,039,138.80-451,194.68

Finding the Fourth Proportional to 753,000.68, 1,039,138.80 and 451,194.68

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Solution

The fourth proportional to 753,000.68, 1,039,138.80 and 451,194.68 is: 622,647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,000.68 : 1,039,138.80 = 451,194.68 : x
  2. Step 2: Convert to fraction form
    753,000.68/1,039,138.80 = 451,194.68/x
  3. Step 3: Cross multiply
    753,000.68x = 1,039,138.80 × 451,194.68
  4. Step 4: Simplify right side
    753,000.68x = 468,853,898,341.58
  5. Step 5: Solve for x
    x = 468,853,898,341.58/753,000.68
  6. Step 6: Final answer
    x = 622,647.38

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Double scale
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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.