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Finding the Fourth Proportional to 609,352.83, 841,782.81 and 486,684.15

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Solution

The fourth proportional to 609,352.83, 841,782.81 and 486,684.15 is: 672,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,352.83 : 841,782.81 = 486,684.15 : x
  2. Step 2: Convert to fraction form
    609,352.83/841,782.81 = 486,684.15/x
  3. Step 3: Cross multiply
    609,352.83x = 841,782.81 × 486,684.15
  4. Step 4: Simplify right side
    609,352.83x = 409,682,351,369.46
  5. Step 5: Solve for x
    x = 409,682,351,369.46/609,352.83
  6. Step 6: Final answer
    x = 672,323.70

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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.