Home / 644,934.70-966,710.85-245,421.10

Finding the Fourth Proportional to 644,934.70, 966,710.85 and 245,421.10

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Solution

The fourth proportional to 644,934.70, 966,710.85 and 245,421.10 is: 367,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,934.70 : 966,710.85 = 245,421.10 : x
  2. Step 2: Convert to fraction form
    644,934.70/966,710.85 = 245,421.10/x
  3. Step 3: Cross multiply
    644,934.70x = 966,710.85 × 245,421.10
  4. Step 4: Simplify right side
    644,934.70x = 237,251,240,188.94
  5. Step 5: Solve for x
    x = 237,251,240,188.94/644,934.70
  6. Step 6: Final answer
    x = 367,868.62

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Half scale
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Double scale
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Similar ratio
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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.