Home / 957,642.40-1,436,463.60-621,719.20

Finding the Fourth Proportional to 957,642.40, 1,436,463.60 and 621,719.20

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Solution

The fourth proportional to 957,642.40, 1,436,463.60 and 621,719.20 is: 932,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,642.40 : 1,436,463.60 = 621,719.20 : x
  2. Step 2: Convert to fraction form
    957,642.40/1,436,463.60 = 621,719.20/x
  3. Step 3: Cross multiply
    957,642.40x = 1,436,463.60 × 621,719.20
  4. Step 4: Simplify right side
    957,642.40x = 893,077,000,221.12
  5. Step 5: Solve for x
    x = 893,077,000,221.12/957,642.40
  6. Step 6: Final answer
    x = 932,578.80

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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.