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Finding the Fourth Proportional to 725,264.04, 997,315.14 and 629,603.40

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Solution

The fourth proportional to 725,264.04, 997,315.14 and 629,603.40 is: 865,771.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,264.04 : 997,315.14 = 629,603.40 : x
  2. Step 2: Convert to fraction form
    725,264.04/997,315.14 = 629,603.40/x
  3. Step 3: Cross multiply
    725,264.04x = 997,315.14 × 629,603.40
  4. Step 4: Simplify right side
    725,264.04x = 627,913,003,015.48
  5. Step 5: Solve for x
    x = 627,913,003,015.48/725,264.04
  6. Step 6: Final answer
    x = 865,771.59

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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.