Home / 644,170.78-966,014.25-223,345.18

Finding the Fourth Proportional to 644,170.78, 966,014.25 and 223,345.18

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Solution

The fourth proportional to 644,170.78, 966,014.25 and 223,345.18 is: 334,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,170.78 : 966,014.25 = 223,345.18 : x
  2. Step 2: Convert to fraction form
    644,170.78/966,014.25 = 223,345.18/x
  3. Step 3: Cross multiply
    644,170.78x = 966,014.25 × 223,345.18
  4. Step 4: Simplify right side
    644,170.78x = 215,754,626,548.82
  5. Step 5: Solve for x
    x = 215,754,626,548.82/644,170.78
  6. Step 6: Final answer
    x = 334,933.89

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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.