Home / 621,045.20-931,567.80-177,813.20

Finding the Fourth Proportional to 621,045.20, 931,567.80 and 177,813.20

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Solution

The fourth proportional to 621,045.20, 931,567.80 and 177,813.20 is: 266,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,045.20 : 931,567.80 = 177,813.20 : x
  2. Step 2: Convert to fraction form
    621,045.20/931,567.80 = 177,813.20/x
  3. Step 3: Cross multiply
    621,045.20x = 931,567.80 × 177,813.20
  4. Step 4: Simplify right side
    621,045.20x = 165,645,051,534.96
  5. Step 5: Solve for x
    x = 165,645,051,534.96/621,045.20
  6. Step 6: Final answer
    x = 266,719.80

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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.