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Finding the Fourth Proportional to 898,083.35, 1,239,355.03 and 612,103.03

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Solution

The fourth proportional to 898,083.35, 1,239,355.03 and 612,103.03 is: 844,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,083.35 : 1,239,355.03 = 612,103.03 : x
  2. Step 2: Convert to fraction form
    898,083.35/1,239,355.03 = 612,103.03/x
  3. Step 3: Cross multiply
    898,083.35x = 1,239,355.03 × 612,103.03
  4. Step 4: Simplify right side
    898,083.35x = 758,612,969,108.74
  5. Step 5: Solve for x
    x = 758,612,969,108.74/898,083.35
  6. Step 6: Final answer
    x = 844,702.19

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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.