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Finding the Fourth Proportional to 402,566.82, 555,530.22 and 230,479.08

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Solution

The fourth proportional to 402,566.82, 555,530.22 and 230,479.08 is: 318,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,566.82 : 555,530.22 = 230,479.08 : x
  2. Step 2: Convert to fraction form
    402,566.82/555,530.22 = 230,479.08/x
  3. Step 3: Cross multiply
    402,566.82x = 555,530.22 × 230,479.08
  4. Step 4: Simplify right side
    402,566.82x = 128,038,094,017.80
  5. Step 5: Solve for x
    x = 128,038,094,017.80/402,566.82
  6. Step 6: Final answer
    x = 318,054.26

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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.