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Finding the Fourth Proportional to 418,303.77, 577,256.55 and 227,317.17

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Solution

The fourth proportional to 418,303.77, 577,256.55 and 227,317.17 is: 313,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,303.77 : 577,256.55 = 227,317.17 : x
  2. Step 2: Convert to fraction form
    418,303.77/577,256.55 = 227,317.17/x
  3. Step 3: Cross multiply
    418,303.77x = 577,256.55 × 227,317.17
  4. Step 4: Simplify right side
    418,303.77x = 131,220,325,309.96
  5. Step 5: Solve for x
    x = 131,220,325,309.96/418,303.77
  6. Step 6: Final answer
    x = 313,696.25

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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.