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Finding the Fourth Proportional to 518,192.08, 777,392.88 and 218,673.34

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Solution

The fourth proportional to 518,192.08, 777,392.88 and 218,673.34 is: 328,054.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,192.08 : 777,392.88 = 218,673.34 : x
  2. Step 2: Convert to fraction form
    518,192.08/777,392.88 = 218,673.34/x
  3. Step 3: Cross multiply
    518,192.08x = 777,392.88 × 218,673.34
  4. Step 4: Simplify right side
    518,192.08x = 169,995,097,561.82
  5. Step 5: Solve for x
    x = 169,995,097,561.82/518,192.08
  6. Step 6: Final answer
    x = 328,054.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.