Home / 899,192.08-1,240,870.38-491,285.12

Finding the Fourth Proportional to 899,192.08, 1,240,870.38 and 491,285.12

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Solution

The fourth proportional to 899,192.08, 1,240,870.38 and 491,285.12 is: 677,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,192.08 : 1,240,870.38 = 491,285.12 : x
  2. Step 2: Convert to fraction form
    899,192.08/1,240,870.38 = 491,285.12/x
  3. Step 3: Cross multiply
    899,192.08x = 1,240,870.38 × 491,285.12
  4. Step 4: Simplify right side
    899,192.08x = 609,621,153,542.75
  5. Step 5: Solve for x
    x = 609,621,153,542.75/899,192.08
  6. Step 6: Final answer
    x = 677,965.44

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Double scale
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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.