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Finding the Fourth Proportional to 354,374.40, 531,561.60 and 177,427.20

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Solution

The fourth proportional to 354,374.40, 531,561.60 and 177,427.20 is: 266,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,374.40 : 531,561.60 = 177,427.20 : x
  2. Step 2: Convert to fraction form
    354,374.40/531,561.60 = 177,427.20/x
  3. Step 3: Cross multiply
    354,374.40x = 531,561.60 × 177,427.20
  4. Step 4: Simplify right side
    354,374.40x = 94,313,486,315.52
  5. Step 5: Solve for x
    x = 94,313,486,315.52/354,374.40
  6. Step 6: Final answer
    x = 266,140.80

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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.