Home / 626,900.82-865,133.18-354,961.44

Finding the Fourth Proportional to 626,900.82, 865,133.18 and 354,961.44

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Solution

The fourth proportional to 626,900.82, 865,133.18 and 354,961.44 is: 489,852.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,900.82 : 865,133.18 = 354,961.44 : x
  2. Step 2: Convert to fraction form
    626,900.82/865,133.18 = 354,961.44/x
  3. Step 3: Cross multiply
    626,900.82x = 865,133.18 × 354,961.44
  4. Step 4: Simplify right side
    626,900.82x = 307,088,921,333.40
  5. Step 5: Solve for x
    x = 307,088,921,333.40/626,900.82
  6. Step 6: Final answer
    x = 489,852.48

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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.