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Finding the Fourth Proportional to 607,021.70, 910,532.55 and 488,923.70

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Solution

The fourth proportional to 607,021.70, 910,532.55 and 488,923.70 is: 733,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,021.70 : 910,532.55 = 488,923.70 : x
  2. Step 2: Convert to fraction form
    607,021.70/910,532.55 = 488,923.70/x
  3. Step 3: Cross multiply
    607,021.70x = 910,532.55 × 488,923.70
  4. Step 4: Simplify right side
    607,021.70x = 445,180,943,316.44
  5. Step 5: Solve for x
    x = 445,180,943,316.44/607,021.70
  6. Step 6: Final answer
    x = 733,385.55

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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.