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Finding the Fourth Proportional to 3,752,621.04, 5,628,931.56 and 912,735.12

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Solution

The fourth proportional to 3,752,621.04, 5,628,931.56 and 912,735.12 is: 1,369,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752,621.04 : 5,628,931.56 = 912,735.12 : x
  2. Step 2: Convert to fraction form
    3,752,621.04/5,628,931.56 = 912,735.12/x
  3. Step 3: Cross multiply
    3,752,621.04x = 5,628,931.56 × 912,735.12
  4. Step 4: Simplify right side
    3,752,621.04x = 5,137,723,522,888.39
  5. Step 5: Solve for x
    x = 5,137,723,522,888.39/3,752,621.04
  6. Step 6: Final answer
    x = 1,369,102.68

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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.