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Finding the Fourth Proportional to 500,887.56, 750,998.16 and 260,410.80

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Solution

The fourth proportional to 500,887.56, 750,998.16 and 260,410.80 is: 390,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,887.56 : 750,998.16 = 260,410.80 : x
  2. Step 2: Convert to fraction form
    500,887.56/750,998.16 = 260,410.80/x
  3. Step 3: Cross multiply
    500,887.56x = 750,998.16 × 260,410.80
  4. Step 4: Simplify right side
    500,887.56x = 195,568,031,644.13
  5. Step 5: Solve for x
    x = 195,568,031,644.13/500,887.56
  6. Step 6: Final answer
    x = 390,442.98

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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.