Home / 430,641.53-645,962.29-177,928.57

Finding the Fourth Proportional to 430,641.53, 645,962.29 and 177,928.57

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Solution

The fourth proportional to 430,641.53, 645,962.29 and 177,928.57 is: 266,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,641.53 : 645,962.29 = 177,928.57 : x
  2. Step 2: Convert to fraction form
    430,641.53/645,962.29 = 177,928.57/x
  3. Step 3: Cross multiply
    430,641.53x = 645,962.29 × 177,928.57
  4. Step 4: Simplify right side
    430,641.53x = 114,935,145,544.86
  5. Step 5: Solve for x
    x = 114,935,145,544.86/430,641.53
  6. Step 6: Final answer
    x = 266,892.85

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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.