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Finding the Fourth Proportional to 542,000.69, 748,085.19 and 360,720.26

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Solution

The fourth proportional to 542,000.69, 748,085.19 and 360,720.26 is: 497,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,000.69 : 748,085.19 = 360,720.26 : x
  2. Step 2: Convert to fraction form
    542,000.69/748,085.19 = 360,720.26/x
  3. Step 3: Cross multiply
    542,000.69x = 748,085.19 × 360,720.26
  4. Step 4: Simplify right side
    542,000.69x = 269,849,484,238.95
  5. Step 5: Solve for x
    x = 269,849,484,238.95/542,000.69
  6. Step 6: Final answer
    x = 497,876.64

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Double scale
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Similar ratio
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1.5x scale

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.