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Finding the Fourth Proportional to 576,734.72, 790,113.42 and 555,171.53

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Solution

The fourth proportional to 576,734.72, 790,113.42 and 555,171.53 is: 760,572.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,734.72 : 790,113.42 = 555,171.53 : x
  2. Step 2: Convert to fraction form
    576,734.72/790,113.42 = 555,171.53/x
  3. Step 3: Cross multiply
    576,734.72x = 790,113.42 × 555,171.53
  4. Step 4: Simplify right side
    576,734.72x = 438,648,472,304.37
  5. Step 5: Solve for x
    x = 438,648,472,304.37/576,734.72
  6. Step 6: Final answer
    x = 760,572.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.