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Finding the Fourth Proportional to 653,143.56, 901,330.20 and 366,656.28

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Solution

The fourth proportional to 653,143.56, 901,330.20 and 366,656.28 is: 505,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,143.56 : 901,330.20 = 366,656.28 : x
  2. Step 2: Convert to fraction form
    653,143.56/901,330.20 = 366,656.28/x
  3. Step 3: Cross multiply
    653,143.56x = 901,330.20 × 366,656.28
  4. Step 4: Simplify right side
    653,143.56x = 330,478,378,183.66
  5. Step 5: Solve for x
    x = 330,478,378,183.66/653,143.56
  6. Step 6: Final answer
    x = 505,981.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.