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Finding the Fourth Proportional to 562,695.49, 776,519.74 and 308,046.68

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Solution

The fourth proportional to 562,695.49, 776,519.74 and 308,046.68 is: 425,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,695.49 : 776,519.74 = 308,046.68 : x
  2. Step 2: Convert to fraction form
    562,695.49/776,519.74 = 308,046.68/x
  3. Step 3: Cross multiply
    562,695.49x = 776,519.74 × 308,046.68
  4. Step 4: Simplify right side
    562,695.49x = 239,204,327,861.46
  5. Step 5: Solve for x
    x = 239,204,327,861.46/562,695.49
  6. Step 6: Final answer
    x = 425,104.40

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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.