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Finding the Fourth Proportional to 619,670.80, 929,506.20 and 619,670.80

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Solution

The fourth proportional to 619,670.80, 929,506.20 and 619,670.80 is: 929,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,670.80 : 929,506.20 = 619,670.80 : x
  2. Step 2: Convert to fraction form
    619,670.80/929,506.20 = 619,670.80/x
  3. Step 3: Cross multiply
    619,670.80x = 929,506.20 × 619,670.80
  4. Step 4: Simplify right side
    619,670.80x = 575,987,850,558.96
  5. Step 5: Solve for x
    x = 575,987,850,558.96/619,670.80
  6. Step 6: Final answer
    x = 929,506.20

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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.