Home / 919,656.40-1,379,542.91-288,595.12

Finding the Fourth Proportional to 919,656.40, 1,379,542.91 and 288,595.12

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Solution

The fourth proportional to 919,656.40, 1,379,542.91 and 288,595.12 is: 432,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,656.40 : 1,379,542.91 = 288,595.12 : x
  2. Step 2: Convert to fraction form
    919,656.40/1,379,542.91 = 288,595.12/x
  3. Step 3: Cross multiply
    919,656.40x = 1,379,542.91 × 288,595.12
  4. Step 4: Simplify right side
    919,656.40x = 398,129,351,656.60
  5. Step 5: Solve for x
    x = 398,129,351,656.60/919,656.40
  6. Step 6: Final answer
    x = 432,910.98

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Double scale
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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.