Home / 645,640.10-968,460.15-433,063.70

Finding the Fourth Proportional to 645,640.10, 968,460.15 and 433,063.70

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Solution

The fourth proportional to 645,640.10, 968,460.15 and 433,063.70 is: 649,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,640.10 : 968,460.15 = 433,063.70 : x
  2. Step 2: Convert to fraction form
    645,640.10/968,460.15 = 433,063.70/x
  3. Step 3: Cross multiply
    645,640.10x = 968,460.15 × 433,063.70
  4. Step 4: Simplify right side
    645,640.10x = 419,404,935,861.56
  5. Step 5: Solve for x
    x = 419,404,935,861.56/645,640.10
  6. Step 6: Final answer
    x = 649,595.55

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Similar ratio
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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.