Home / 899,192.45-1,240,870.89-491,285.51

Finding the Fourth Proportional to 899,192.45, 1,240,870.89 and 491,285.51

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Solution

The fourth proportional to 899,192.45, 1,240,870.89 and 491,285.51 is: 677,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,192.45 : 1,240,870.89 = 491,285.51 : x
  2. Step 2: Convert to fraction form
    899,192.45/1,240,870.89 = 491,285.51/x
  3. Step 3: Cross multiply
    899,192.45x = 1,240,870.89 × 491,285.51
  4. Step 4: Simplify right side
    899,192.45x = 609,621,881,833.45
  5. Step 5: Solve for x
    x = 609,621,881,833.45/899,192.45
  6. Step 6: Final answer
    x = 677,965.97

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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.