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Finding the Fourth Proportional to 554,649.16, 765,421.86 and 336,794.44

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Solution

The fourth proportional to 554,649.16, 765,421.86 and 336,794.44 is: 464,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,649.16 : 765,421.86 = 336,794.44 : x
  2. Step 2: Convert to fraction form
    554,649.16/765,421.86 = 336,794.44/x
  3. Step 3: Cross multiply
    554,649.16x = 765,421.86 × 336,794.44
  4. Step 4: Simplify right side
    554,649.16x = 257,789,826,702.46
  5. Step 5: Solve for x
    x = 257,789,826,702.46/554,649.16
  6. Step 6: Final answer
    x = 464,779.98

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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.