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Finding the Fourth Proportional to 352,459.91, 486,397.15 and 191,314.94

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Solution

The fourth proportional to 352,459.91, 486,397.15 and 191,314.94 is: 264,015.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,459.91 : 486,397.15 = 191,314.94 : x
  2. Step 2: Convert to fraction form
    352,459.91/486,397.15 = 191,314.94/x
  3. Step 3: Cross multiply
    352,459.91x = 486,397.15 × 191,314.94
  4. Step 4: Simplify right side
    352,459.91x = 93,055,038,658.15
  5. Step 5: Solve for x
    x = 93,055,038,658.15/352,459.91
  6. Step 6: Final answer
    x = 264,015.95

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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.