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Finding the Fourth Proportional to 562,765.16, 776,585.16 and 308,067.08

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Solution

The fourth proportional to 562,765.16, 776,585.16 and 308,067.08 is: 425,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,765.16 : 776,585.16 = 308,067.08 : x
  2. Step 2: Convert to fraction form
    562,765.16/776,585.16 = 308,067.08/x
  3. Step 3: Cross multiply
    562,765.16x = 776,585.16 × 308,067.08
  4. Step 4: Simplify right side
    562,765.16x = 239,240,322,612.53
  5. Step 5: Solve for x
    x = 239,240,322,612.53/562,765.16
  6. Step 6: Final answer
    x = 425,115.73

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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.