Home / 645,233.10-969,249.33-621,613.50

Finding the Fourth Proportional to 645,233.10, 969,249.33 and 621,613.50

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Solution

The fourth proportional to 645,233.10, 969,249.33 and 621,613.50 is: 933,768.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,233.10 : 969,249.33 = 621,613.50 : x
  2. Step 2: Convert to fraction form
    645,233.10/969,249.33 = 621,613.50/x
  3. Step 3: Cross multiply
    645,233.10x = 969,249.33 × 621,613.50
  4. Step 4: Simplify right side
    645,233.10x = 602,498,468,393.96
  5. Step 5: Solve for x
    x = 602,498,468,393.96/645,233.10
  6. Step 6: Final answer
    x = 933,768.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.