Home / 919,927.80-1,379,891.70-415,058.85

Finding the Fourth Proportional to 919,927.80, 1,379,891.70 and 415,058.85

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Solution

The fourth proportional to 919,927.80, 1,379,891.70 and 415,058.85 is: 622,588.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,927.80 : 1,379,891.70 = 415,058.85 : x
  2. Step 2: Convert to fraction form
    919,927.80/1,379,891.70 = 415,058.85/x
  3. Step 3: Cross multiply
    919,927.80x = 1,379,891.70 × 415,058.85
  4. Step 4: Simplify right side
    919,927.80x = 572,736,262,126.55
  5. Step 5: Solve for x
    x = 572,736,262,126.55/919,927.80
  6. Step 6: Final answer
    x = 622,588.28

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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.