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Finding the Fourth Proportional to 352,407.84, 486,326.32 and 191,264.32

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Solution

The fourth proportional to 352,407.84, 486,326.32 and 191,264.32 is: 263,946.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,407.84 : 486,326.32 = 191,264.32 : x
  2. Step 2: Convert to fraction form
    352,407.84/486,326.32 = 191,264.32/x
  3. Step 3: Cross multiply
    352,407.84x = 486,326.32 × 191,264.32
  4. Step 4: Simplify right side
    352,407.84x = 93,016,872,892.90
  5. Step 5: Solve for x
    x = 93,016,872,892.90/352,407.84
  6. Step 6: Final answer
    x = 263,946.66

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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.