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Finding the Fourth Proportional to 885,661.68, 1,222,217.88 and 483,262.32

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Solution

The fourth proportional to 885,661.68, 1,222,217.88 and 483,262.32 is: 666,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,661.68 : 1,222,217.88 = 483,262.32 : x
  2. Step 2: Convert to fraction form
    885,661.68/1,222,217.88 = 483,262.32/x
  3. Step 3: Cross multiply
    885,661.68x = 1,222,217.88 × 483,262.32
  4. Step 4: Simplify right side
    885,661.68x = 590,651,848,234.28
  5. Step 5: Solve for x
    x = 590,651,848,234.28/885,661.68
  6. Step 6: Final answer
    x = 666,904.60

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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.