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Finding the Fourth Proportional to 624,063.80, 936,095.70 and 372,121.40

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Solution

The fourth proportional to 624,063.80, 936,095.70 and 372,121.40 is: 558,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,063.80 : 936,095.70 = 372,121.40 : x
  2. Step 2: Convert to fraction form
    624,063.80/936,095.70 = 372,121.40/x
  3. Step 3: Cross multiply
    624,063.80x = 936,095.70 × 372,121.40
  4. Step 4: Simplify right side
    624,063.80x = 348,341,242,417.98
  5. Step 5: Solve for x
    x = 348,341,242,417.98/624,063.80
  6. Step 6: Final answer
    x = 558,182.10

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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.