Home / 385,000.41-531,366.12-223,948.82

Finding the Fourth Proportional to 385,000.41, 531,366.12 and 223,948.82

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Solution

The fourth proportional to 385,000.41, 531,366.12 and 223,948.82 is: 309,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,000.41 : 531,366.12 = 223,948.82 : x
  2. Step 2: Convert to fraction form
    385,000.41/531,366.12 = 223,948.82/x
  3. Step 3: Cross multiply
    385,000.41x = 531,366.12 × 223,948.82
  4. Step 4: Simplify right side
    385,000.41x = 118,998,811,785.40
  5. Step 5: Solve for x
    x = 118,998,811,785.40/385,000.41
  6. Step 6: Final answer
    x = 309,087.49

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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.