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Finding the Fourth Proportional to 611,227.51, 916,633.56 and 211,775.02

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Solution

The fourth proportional to 611,227.51, 916,633.56 and 211,775.02 is: 317,590.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,227.51 : 916,633.56 = 211,775.02 : x
  2. Step 2: Convert to fraction form
    611,227.51/916,633.56 = 211,775.02/x
  3. Step 3: Cross multiply
    611,227.51x = 916,633.56 × 211,775.02
  4. Step 4: Simplify right side
    611,227.51x = 194,120,089,004.24
  5. Step 5: Solve for x
    x = 194,120,089,004.24/611,227.51
  6. Step 6: Final answer
    x = 317,590.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.