Home / 619,538.20-929,307.30-479,570.20

Finding the Fourth Proportional to 619,538.20, 929,307.30 and 479,570.20

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Solution

The fourth proportional to 619,538.20, 929,307.30 and 479,570.20 is: 719,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,538.20 : 929,307.30 = 479,570.20 : x
  2. Step 2: Convert to fraction form
    619,538.20/929,307.30 = 479,570.20/x
  3. Step 3: Cross multiply
    619,538.20x = 929,307.30 × 479,570.20
  4. Step 4: Simplify right side
    619,538.20x = 445,668,087,722.46
  5. Step 5: Solve for x
    x = 445,668,087,722.46/619,538.20
  6. Step 6: Final answer
    x = 719,355.30

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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.