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Finding the Fourth Proportional to 914,325.20, 1,276,906 and 914,325.20

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Solution

The fourth proportional to 914,325.20, 1,276,906 and 914,325.20 is: 1,276,906

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,325.20 : 1,276,906 = 914,325.20 : x
  2. Step 2: Convert to fraction form
    914,325.20/1,276,906 = 914,325.20/x
  3. Step 3: Cross multiply
    914,325.20x = 1,276,906 × 914,325.20
  4. Step 4: Simplify right side
    914,325.20x = 1,167,507,333,831.20
  5. Step 5: Solve for x
    x = 1,167,507,333,831.20/914,325.20
  6. Step 6: Final answer
    x = 1,276,906

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Double scale
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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.