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Finding the Fourth Proportional to 578,136.71, 797,802.77 and 320,023.33

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Solution

The fourth proportional to 578,136.71, 797,802.77 and 320,023.33 is: 441,617.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,136.71 : 797,802.77 = 320,023.33 : x
  2. Step 2: Convert to fraction form
    578,136.71/797,802.77 = 320,023.33/x
  3. Step 3: Cross multiply
    578,136.71x = 797,802.77 × 320,023.33
  4. Step 4: Simplify right side
    578,136.71x = 255,315,497,944.18
  5. Step 5: Solve for x
    x = 255,315,497,944.18/578,136.71
  6. Step 6: Final answer
    x = 441,617.86

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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.