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Finding the Fourth Proportional to 965,411.80, 1,448,117.70 and 903,203.80

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Solution

The fourth proportional to 965,411.80, 1,448,117.70 and 903,203.80 is: 1,354,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,411.80 : 1,448,117.70 = 903,203.80 : x
  2. Step 2: Convert to fraction form
    965,411.80/1,448,117.70 = 903,203.80/x
  3. Step 3: Cross multiply
    965,411.80x = 1,448,117.70 × 903,203.80
  4. Step 4: Simplify right side
    965,411.80x = 1,307,945,409,487.26
  5. Step 5: Solve for x
    x = 1,307,945,409,487.26/965,411.80
  6. Step 6: Final answer
    x = 1,354,805.70

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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.