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Finding the Fourth Proportional to 562,794.36, 776,656.08 and 308,145.48

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Solution

The fourth proportional to 562,794.36, 776,656.08 and 308,145.48 is: 425,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,794.36 : 776,656.08 = 308,145.48 : x
  2. Step 2: Convert to fraction form
    562,794.36/776,656.08 = 308,145.48/x
  3. Step 3: Cross multiply
    562,794.36x = 776,656.08 × 308,145.48
  4. Step 4: Simplify right side
    562,794.36x = 239,323,060,566.52
  5. Step 5: Solve for x
    x = 239,323,060,566.52/562,794.36
  6. Step 6: Final answer
    x = 425,240.69

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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.