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Finding the Fourth Proportional to 551,218.16, 760,764.24 and 336,483.20

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Solution

The fourth proportional to 551,218.16, 760,764.24 and 336,483.20 is: 464,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,218.16 : 760,764.24 = 336,483.20 : x
  2. Step 2: Convert to fraction form
    551,218.16/760,764.24 = 336,483.20/x
  3. Step 3: Cross multiply
    551,218.16x = 760,764.24 × 336,483.20
  4. Step 4: Simplify right side
    551,218.16x = 255,984,385,920.77
  5. Step 5: Solve for x
    x = 255,984,385,920.77/551,218.16
  6. Step 6: Final answer
    x = 464,397.59

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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.