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Finding the Fourth Proportional to 1,478,464.40, 2,074,049.20 and 1,478,464.40

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Solution

The fourth proportional to 1,478,464.40, 2,074,049.20 and 1,478,464.40 is: 2,074,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,464.40 : 2,074,049.20 = 1,478,464.40 : x
  2. Step 2: Convert to fraction form
    1,478,464.40/2,074,049.20 = 1,478,464.40/x
  3. Step 3: Cross multiply
    1,478,464.40x = 2,074,049.20 × 1,478,464.40
  4. Step 4: Simplify right side
    1,478,464.40x = 3,066,407,906,048.48
  5. Step 5: Solve for x
    x = 3,066,407,906,048.48/1,478,464.40
  6. Step 6: Final answer
    x = 2,074,049.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.