Home / 317,815.40-438,624.30-183,679.40

Finding the Fourth Proportional to 317,815.40, 438,624.30 and 183,679.40

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Solution

The fourth proportional to 317,815.40, 438,624.30 and 183,679.40 is: 253,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,815.40 : 438,624.30 = 183,679.40 : x
  2. Step 2: Convert to fraction form
    317,815.40/438,624.30 = 183,679.40/x
  3. Step 3: Cross multiply
    317,815.40x = 438,624.30 × 183,679.40
  4. Step 4: Simplify right side
    317,815.40x = 80,566,248,249.42
  5. Step 5: Solve for x
    x = 80,566,248,249.42/317,815.40
  6. Step 6: Final answer
    x = 253,500.14

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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.