Home / 886,681.50-1,330,209.26-287,596.12

Finding the Fourth Proportional to 886,681.50, 1,330,209.26 and 287,596.12

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Solution

The fourth proportional to 886,681.50, 1,330,209.26 and 287,596.12 is: 431,454.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,681.50 : 1,330,209.26 = 287,596.12 : x
  2. Step 2: Convert to fraction form
    886,681.50/1,330,209.26 = 287,596.12/x
  3. Step 3: Cross multiply
    886,681.50x = 1,330,209.26 × 287,596.12
  4. Step 4: Simplify right side
    886,681.50x = 382,563,021,964.07
  5. Step 5: Solve for x
    x = 382,563,021,964.07/886,681.50
  6. Step 6: Final answer
    x = 431,454.84

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Half scale
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Double scale
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Similar ratio
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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.