Home / 441,895.20-609,554.88-312,688.32

Finding the Fourth Proportional to 441,895.20, 609,554.88 and 312,688.32

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Solution

The fourth proportional to 441,895.20, 609,554.88 and 312,688.32 is: 431,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,895.20 : 609,554.88 = 312,688.32 : x
  2. Step 2: Convert to fraction form
    441,895.20/609,554.88 = 312,688.32/x
  3. Step 3: Cross multiply
    441,895.20x = 609,554.88 × 312,688.32
  4. Step 4: Simplify right side
    441,895.20x = 190,600,691,375.00
  5. Step 5: Solve for x
    x = 190,600,691,375.00/441,895.20
  6. Step 6: Final answer
    x = 431,325.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.