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Finding the Fourth Proportional to 562,935.36, 776,853.28 and 308,288.32

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Solution

The fourth proportional to 562,935.36, 776,853.28 and 308,288.32 is: 425,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,935.36 : 776,853.28 = 308,288.32 : x
  2. Step 2: Convert to fraction form
    562,935.36/776,853.28 = 308,288.32/x
  3. Step 3: Cross multiply
    562,935.36x = 776,853.28 × 308,288.32
  4. Step 4: Simplify right side
    562,935.36x = 239,494,792,577.69
  5. Step 5: Solve for x
    x = 239,494,792,577.69/562,935.36
  6. Step 6: Final answer
    x = 425,439.24

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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.