Home / 396,612.18-547,075.53-235,353.06

Finding the Fourth Proportional to 396,612.18, 547,075.53 and 235,353.06

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Solution

The fourth proportional to 396,612.18, 547,075.53 and 235,353.06 is: 324,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,612.18 : 547,075.53 = 235,353.06 : x
  2. Step 2: Convert to fraction form
    396,612.18/547,075.53 = 235,353.06/x
  3. Step 3: Cross multiply
    396,612.18x = 547,075.53 × 235,353.06
  4. Step 4: Simplify right side
    396,612.18x = 128,755,900,036.62
  5. Step 5: Solve for x
    x = 128,755,900,036.62/396,612.18
  6. Step 6: Final answer
    x = 324,639.30

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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.