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Finding the Fourth Proportional to 619,861.44, 929,792.16 and 433,237.44

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Solution

The fourth proportional to 619,861.44, 929,792.16 and 433,237.44 is: 649,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,861.44 : 929,792.16 = 433,237.44 : x
  2. Step 2: Convert to fraction form
    619,861.44/929,792.16 = 433,237.44/x
  3. Step 3: Cross multiply
    619,861.44x = 929,792.16 × 433,237.44
  4. Step 4: Simplify right side
    619,861.44x = 402,820,775,130.47
  5. Step 5: Solve for x
    x = 402,820,775,130.47/619,861.44
  6. Step 6: Final answer
    x = 649,856.16

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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.