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Finding the Fourth Proportional to 624,156.80, 936,235.20 and 372,214.40

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Solution

The fourth proportional to 624,156.80, 936,235.20 and 372,214.40 is: 558,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,156.80 : 936,235.20 = 372,214.40 : x
  2. Step 2: Convert to fraction form
    624,156.80/936,235.20 = 372,214.40/x
  3. Step 3: Cross multiply
    624,156.80x = 936,235.20 × 372,214.40
  4. Step 4: Simplify right side
    624,156.80x = 348,480,223,226.88
  5. Step 5: Solve for x
    x = 348,480,223,226.88/624,156.80
  6. Step 6: Final answer
    x = 558,321.60

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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.