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Finding the Fourth Proportional to 418,477.76, 577,487.13 and 237,206.36

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Solution

The fourth proportional to 418,477.76, 577,487.13 and 237,206.36 is: 327,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,477.76 : 577,487.13 = 237,206.36 : x
  2. Step 2: Convert to fraction form
    418,477.76/577,487.13 = 237,206.36/x
  3. Step 3: Cross multiply
    418,477.76x = 577,487.13 × 237,206.36
  4. Step 4: Simplify right side
    418,477.76x = 136,983,620,054.15
  5. Step 5: Solve for x
    x = 136,983,620,054.15/418,477.76
  6. Step 6: Final answer
    x = 327,337.87

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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.