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Finding the Fourth Proportional to 583,277.40, 874,916.10 and 394,320.60

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Solution

The fourth proportional to 583,277.40, 874,916.10 and 394,320.60 is: 591,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,277.40 : 874,916.10 = 394,320.60 : x
  2. Step 2: Convert to fraction form
    583,277.40/874,916.10 = 394,320.60/x
  3. Step 3: Cross multiply
    583,277.40x = 874,916.10 × 394,320.60
  4. Step 4: Simplify right side
    583,277.40x = 344,997,441,501.66
  5. Step 5: Solve for x
    x = 344,997,441,501.66/583,277.40
  6. Step 6: Final answer
    x = 591,480.90

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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.