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Finding the Fourth Proportional to 617,959.40, 926,939.10 and 243,933.80

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Solution

The fourth proportional to 617,959.40, 926,939.10 and 243,933.80 is: 365,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,959.40 : 926,939.10 = 243,933.80 : x
  2. Step 2: Convert to fraction form
    617,959.40/926,939.10 = 243,933.80/x
  3. Step 3: Cross multiply
    617,959.40x = 926,939.10 × 243,933.80
  4. Step 4: Simplify right side
    617,959.40x = 226,111,777,031.58
  5. Step 5: Solve for x
    x = 226,111,777,031.58/617,959.40
  6. Step 6: Final answer
    x = 365,900.70

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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.