Home / 890,016.12-1,228,223.66-527,618.07

Finding the Fourth Proportional to 890,016.12, 1,228,223.66 and 527,618.07

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Solution

The fourth proportional to 890,016.12, 1,228,223.66 and 527,618.07 is: 728,113.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,016.12 : 1,228,223.66 = 527,618.07 : x
  2. Step 2: Convert to fraction form
    890,016.12/1,228,223.66 = 527,618.07/x
  3. Step 3: Cross multiply
    890,016.12x = 1,228,223.66 × 527,618.07
  4. Step 4: Simplify right side
    890,016.12x = 648,032,994,379.45
  5. Step 5: Solve for x
    x = 648,032,994,379.45/890,016.12
  6. Step 6: Final answer
    x = 728,113.77

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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.