Home / 553,582.38-764,000.12-338,864.34

Finding the Fourth Proportional to 553,582.38, 764,000.12 and 338,864.34

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Solution

The fourth proportional to 553,582.38, 764,000.12 and 338,864.34 is: 467,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,582.38 : 764,000.12 = 338,864.34 : x
  2. Step 2: Convert to fraction form
    553,582.38/764,000.12 = 338,864.34/x
  3. Step 3: Cross multiply
    553,582.38x = 764,000.12 × 338,864.34
  4. Step 4: Simplify right side
    553,582.38x = 258,892,396,423.72
  5. Step 5: Solve for x
    x = 258,892,396,423.72/553,582.38
  6. Step 6: Final answer
    x = 467,667.34

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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.