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Finding the Fourth Proportional to 671,416.80, 926,552.76 and 369,610.80

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Solution

The fourth proportional to 671,416.80, 926,552.76 and 369,610.80 is: 510,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,416.80 : 926,552.76 = 369,610.80 : x
  2. Step 2: Convert to fraction form
    671,416.80/926,552.76 = 369,610.80/x
  3. Step 3: Cross multiply
    671,416.80x = 926,552.76 × 369,610.80
  4. Step 4: Simplify right side
    671,416.80x = 342,463,906,865.81
  5. Step 5: Solve for x
    x = 342,463,906,865.81/671,416.80
  6. Step 6: Final answer
    x = 510,061.57

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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.