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Finding the Fourth Proportional to 607,266.20, 910,899.30 and 489,168.20

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Solution

The fourth proportional to 607,266.20, 910,899.30 and 489,168.20 is: 733,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,266.20 : 910,899.30 = 489,168.20 : x
  2. Step 2: Convert to fraction form
    607,266.20/910,899.30 = 489,168.20/x
  3. Step 3: Cross multiply
    607,266.20x = 910,899.30 × 489,168.20
  4. Step 4: Simplify right side
    607,266.20x = 445,582,970,962.26
  5. Step 5: Solve for x
    x = 445,582,970,962.26/607,266.20
  6. Step 6: Final answer
    x = 733,752.30

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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.