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Finding the Fourth Proportional to 418,410.75, 577,407.63 and 227,423.68

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Solution

The fourth proportional to 418,410.75, 577,407.63 and 227,423.68 is: 313,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,410.75 : 577,407.63 = 227,423.68 : x
  2. Step 2: Convert to fraction form
    418,410.75/577,407.63 = 227,423.68/x
  3. Step 3: Cross multiply
    418,410.75x = 577,407.63 × 227,423.68
  4. Step 4: Simplify right side
    418,410.75x = 131,316,168,074.68
  5. Step 5: Solve for x
    x = 131,316,168,074.68/418,410.75
  6. Step 6: Final answer
    x = 313,845.11

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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.