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Finding the Fourth Proportional to 576,826.62, 865,782.78 and 292,721.16

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Solution

The fourth proportional to 576,826.62, 865,782.78 and 292,721.16 is: 439,357.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,826.62 : 865,782.78 = 292,721.16 : x
  2. Step 2: Convert to fraction form
    576,826.62/865,782.78 = 292,721.16/x
  3. Step 3: Cross multiply
    576,826.62x = 865,782.78 × 292,721.16
  4. Step 4: Simplify right side
    576,826.62x = 253,432,939,669.63
  5. Step 5: Solve for x
    x = 253,432,939,669.63/576,826.62
  6. Step 6: Final answer
    x = 439,357.22

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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.