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Finding the Fourth Proportional to 216,353.19, 296,978.28 and 191,946.27

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Solution

The fourth proportional to 216,353.19, 296,978.28 and 191,946.27 is: 263,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,353.19 : 296,978.28 = 191,946.27 : x
  2. Step 2: Convert to fraction form
    216,353.19/296,978.28 = 191,946.27/x
  3. Step 3: Cross multiply
    216,353.19x = 296,978.28 × 191,946.27
  4. Step 4: Simplify right side
    216,353.19x = 57,003,873,117.02
  5. Step 5: Solve for x
    x = 57,003,873,117.02/216,353.19
  6. Step 6: Final answer
    x = 263,476.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.