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Finding the Fourth Proportional to 798,993.71, 1,103,009.00 and 493,238.63

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Solution

The fourth proportional to 798,993.71, 1,103,009.00 and 493,238.63 is: 680,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,993.71 : 1,103,009.00 = 493,238.63 : x
  2. Step 2: Convert to fraction form
    798,993.71/1,103,009.00 = 493,238.63/x
  3. Step 3: Cross multiply
    798,993.71x = 1,103,009.00 × 493,238.63
  4. Step 4: Simplify right side
    798,993.71x = 544,046,640,056.43
  5. Step 5: Solve for x
    x = 544,046,640,056.43/798,993.71
  6. Step 6: Final answer
    x = 680,914.80

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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.