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Finding the Fourth Proportional to 608,637.60, 911,206.80 and 372,441.60

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Solution

The fourth proportional to 608,637.60, 911,206.80 and 372,441.60 is: 557,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,637.60 : 911,206.80 = 372,441.60 : x
  2. Step 2: Convert to fraction form
    608,637.60/911,206.80 = 372,441.60/x
  3. Step 3: Cross multiply
    608,637.60x = 911,206.80 × 372,441.60
  4. Step 4: Simplify right side
    608,637.60x = 339,371,318,522.88
  5. Step 5: Solve for x
    x = 339,371,318,522.88/608,637.60
  6. Step 6: Final answer
    x = 557,591.77

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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.