Home / 919,929.80-1,379,894.70-415,060.85

Finding the Fourth Proportional to 919,929.80, 1,379,894.70 and 415,060.85

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Solution

The fourth proportional to 919,929.80, 1,379,894.70 and 415,060.85 is: 622,591.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,929.80 : 1,379,894.70 = 415,060.85 : x
  2. Step 2: Convert to fraction form
    919,929.80/1,379,894.70 = 415,060.85/x
  3. Step 3: Cross multiply
    919,929.80x = 1,379,894.70 × 415,060.85
  4. Step 4: Simplify right side
    919,929.80x = 572,740,267,092.50
  5. Step 5: Solve for x
    x = 572,740,267,092.50/919,929.80
  6. Step 6: Final answer
    x = 622,591.28

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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.