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Finding the Fourth Proportional to 352,642.64, 486,637.32 and 191,490.32

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Solution

The fourth proportional to 352,642.64, 486,637.32 and 191,490.32 is: 264,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,642.64 : 486,637.32 = 191,490.32 : x
  2. Step 2: Convert to fraction form
    352,642.64/486,637.32 = 191,490.32/x
  3. Step 3: Cross multiply
    352,642.64x = 486,637.32 × 191,490.32
  4. Step 4: Simplify right side
    352,642.64x = 93,186,336,130.74
  5. Step 5: Solve for x
    x = 93,186,336,130.74/352,642.64
  6. Step 6: Final answer
    x = 264,251.47

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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.