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Finding the Fourth Proportional to 307,666.20, 460,721.70 and 245,458.20

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Solution

The fourth proportional to 307,666.20, 460,721.70 and 245,458.20 is: 367,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,666.20 : 460,721.70 = 245,458.20 : x
  2. Step 2: Convert to fraction form
    307,666.20/460,721.70 = 245,458.20/x
  3. Step 3: Cross multiply
    307,666.20x = 460,721.70 × 245,458.20
  4. Step 4: Simplify right side
    307,666.20x = 113,087,919,182.94
  5. Step 5: Solve for x
    x = 113,087,919,182.94/307,666.20
  6. Step 6: Final answer
    x = 367,566.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.