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Finding the Fourth Proportional to 356,492.16, 491,959.04 and 197,516.16

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Solution

The fourth proportional to 356,492.16, 491,959.04 and 197,516.16 is: 272,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,492.16 : 491,959.04 = 197,516.16 : x
  2. Step 2: Convert to fraction form
    356,492.16/491,959.04 = 197,516.16/x
  3. Step 3: Cross multiply
    356,492.16x = 491,959.04 × 197,516.16
  4. Step 4: Simplify right side
    356,492.16x = 97,169,860,458.09
  5. Step 5: Solve for x
    x = 97,169,860,458.09/356,492.16
  6. Step 6: Final answer
    x = 272,572.22

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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.