Home / 899,132.22-1,240,888.26-491,296.02

Finding the Fourth Proportional to 899,132.22, 1,240,888.26 and 491,296.02

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Solution

The fourth proportional to 899,132.22, 1,240,888.26 and 491,296.02 is: 678,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,132.22 : 1,240,888.26 = 491,296.02 : x
  2. Step 2: Convert to fraction form
    899,132.22/1,240,888.26 = 491,296.02/x
  3. Step 3: Cross multiply
    899,132.22x = 1,240,888.26 × 491,296.02
  4. Step 4: Simplify right side
    899,132.22x = 609,643,463,402.73
  5. Step 5: Solve for x
    x = 609,643,463,402.73/899,132.22
  6. Step 6: Final answer
    x = 678,035.39

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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.