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Finding the Fourth Proportional to 619,254.20, 928,881.30 and 264,960.20

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Solution

The fourth proportional to 619,254.20, 928,881.30 and 264,960.20 is: 397,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,254.20 : 928,881.30 = 264,960.20 : x
  2. Step 2: Convert to fraction form
    619,254.20/928,881.30 = 264,960.20/x
  3. Step 3: Cross multiply
    619,254.20x = 928,881.30 × 264,960.20
  4. Step 4: Simplify right side
    619,254.20x = 246,116,575,024.26
  5. Step 5: Solve for x
    x = 246,116,575,024.26/619,254.20
  6. Step 6: Final answer
    x = 397,440.30

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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.