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Finding the Fourth Proportional to 885,952.80, 1,330,241.40 and 686,498.40

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Solution

The fourth proportional to 885,952.80, 1,330,241.40 and 686,498.40 is: 1,030,764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,952.80 : 1,330,241.40 = 686,498.40 : x
  2. Step 2: Convert to fraction form
    885,952.80/1,330,241.40 = 686,498.40/x
  3. Step 3: Cross multiply
    885,952.80x = 1,330,241.40 × 686,498.40
  4. Step 4: Simplify right side
    885,952.80x = 913,208,592,713.76
  5. Step 5: Solve for x
    x = 913,208,592,713.76/885,952.80
  6. Step 6: Final answer
    x = 1,030,764.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.