Home / 663,326.40-993,895.20-382,353.60

Finding the Fourth Proportional to 663,326.40, 993,895.20 and 382,353.60

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Solution

The fourth proportional to 663,326.40, 993,895.20 and 382,353.60 is: 572,899.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,326.40 : 993,895.20 = 382,353.60 : x
  2. Step 2: Convert to fraction form
    663,326.40/993,895.20 = 382,353.60/x
  3. Step 3: Cross multiply
    663,326.40x = 993,895.20 × 382,353.60
  4. Step 4: Simplify right side
    663,326.40x = 380,019,407,742.72
  5. Step 5: Solve for x
    x = 380,019,407,742.72/663,326.40
  6. Step 6: Final answer
    x = 572,899.57

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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.