Home / 911,092,259.44-1,257,301,057.44-493,394,986.24

Finding the Fourth Proportional to 911,092,259.44, 1,257,301,057.44 and 493,394,986.24

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Solution

The fourth proportional to 911,092,259.44, 1,257,301,057.44 and 493,394,986.24 is: 680,881,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,092,259.44 : 1,257,301,057.44 = 493,394,986.24 : x
  2. Step 2: Convert to fraction form
    911,092,259.44/1,257,301,057.44 = 493,394,986.24/x
  3. Step 3: Cross multiply
    911,092,259.44x = 1,257,301,057.44 × 493,394,986.24
  4. Step 4: Simplify right side
    911,092,259.44x = 620,346,037,935,146,240
  5. Step 5: Solve for x
    x = 620,346,037,935,146,240/911,092,259.44
  6. Step 6: Final answer
    x = 680,881,690.64

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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.