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Finding the Fourth Proportional to 885,373.88, 1,221,813.42 and 482,963

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Solution

The fourth proportional to 885,373.88, 1,221,813.42 and 482,963 is: 666,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,373.88 : 1,221,813.42 = 482,963 : x
  2. Step 2: Convert to fraction form
    885,373.88/1,221,813.42 = 482,963/x
  3. Step 3: Cross multiply
    885,373.88x = 1,221,813.42 × 482,963
  4. Step 4: Simplify right side
    885,373.88x = 590,090,674,763.46
  5. Step 5: Solve for x
    x = 590,090,674,763.46/885,373.88
  6. Step 6: Final answer
    x = 666,487.56

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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.