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Finding the Fourth Proportional to 551,613.16, 761,308.50 and 336,876.76

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Solution

The fourth proportional to 551,613.16, 761,308.50 and 336,876.76 is: 464,940.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,613.16 : 761,308.50 = 336,876.76 : x
  2. Step 2: Convert to fraction form
    551,613.16/761,308.50 = 336,876.76/x
  3. Step 3: Cross multiply
    551,613.16x = 761,308.50 × 336,876.76
  4. Step 4: Simplify right side
    551,613.16x = 256,467,140,840.46
  5. Step 5: Solve for x
    x = 256,467,140,840.46/551,613.16
  6. Step 6: Final answer
    x = 464,940.21

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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.