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Finding the Fourth Proportional to 624,066.80, 936,100.20 and 372,124.40

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Solution

The fourth proportional to 624,066.80, 936,100.20 and 372,124.40 is: 558,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,066.80 : 936,100.20 = 372,124.40 : x
  2. Step 2: Convert to fraction form
    624,066.80/936,100.20 = 372,124.40/x
  3. Step 3: Cross multiply
    624,066.80x = 936,100.20 × 372,124.40
  4. Step 4: Simplify right side
    624,066.80x = 348,345,725,264.88
  5. Step 5: Solve for x
    x = 348,345,725,264.88/624,066.80
  6. Step 6: Final answer
    x = 558,186.60

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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.