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Finding the Fourth Proportional to 352,681, 486,699.66 and 191,536.09

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Solution

The fourth proportional to 352,681, 486,699.66 and 191,536.09 is: 264,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,681 : 486,699.66 = 191,536.09 : x
  2. Step 2: Convert to fraction form
    352,681/486,699.66 = 191,536.09/x
  3. Step 3: Cross multiply
    352,681x = 486,699.66 × 191,536.09
  4. Step 4: Simplify right side
    352,681x = 93,220,549,880.73
  5. Step 5: Solve for x
    x = 93,220,549,880.73/352,681
  6. Step 6: Final answer
    x = 264,319.74

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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.