Home / 865,014.90-1,297,799.97-415,768.35

Finding the Fourth Proportional to 865,014.90, 1,297,799.97 and 415,768.35

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Solution

The fourth proportional to 865,014.90, 1,297,799.97 and 415,768.35 is: 623,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,014.90 : 1,297,799.97 = 415,768.35 : x
  2. Step 2: Convert to fraction form
    865,014.90/1,297,799.97 = 415,768.35/x
  3. Step 3: Cross multiply
    865,014.90x = 1,297,799.97 × 415,768.35
  4. Step 4: Simplify right side
    865,014.90x = 539,584,152,156.95
  5. Step 5: Solve for x
    x = 539,584,152,156.95/865,014.90
  6. Step 6: Final answer
    x = 623,785.96

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1.5x scale

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.