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Finding the Fourth Proportional to 689,571.60, 1,032,024.60 and 605,590.80

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Solution

The fourth proportional to 689,571.60, 1,032,024.60 and 605,590.80 is: 906,337.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,571.60 : 1,032,024.60 = 605,590.80 : x
  2. Step 2: Convert to fraction form
    689,571.60/1,032,024.60 = 605,590.80/x
  3. Step 3: Cross multiply
    689,571.60x = 1,032,024.60 × 605,590.80
  4. Step 4: Simplify right side
    689,571.60x = 624,984,603,133.68
  5. Step 5: Solve for x
    x = 624,984,603,133.68/689,571.60
  6. Step 6: Final answer
    x = 906,337.50

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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.