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Finding the Fourth Proportional to 567,103.51, 782,595.62 and 308,991.20

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Solution

The fourth proportional to 567,103.51, 782,595.62 and 308,991.20 is: 426,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,103.51 : 782,595.62 = 308,991.20 : x
  2. Step 2: Convert to fraction form
    567,103.51/782,595.62 = 308,991.20/x
  3. Step 3: Cross multiply
    567,103.51x = 782,595.62 × 308,991.20
  4. Step 4: Simplify right side
    567,103.51x = 241,815,158,193.59
  5. Step 5: Solve for x
    x = 241,815,158,193.59/567,103.51
  6. Step 6: Final answer
    x = 426,403.92

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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.