Home / 853,692.76-1,178,095.62-471,716.20

Finding the Fourth Proportional to 853,692.76, 1,178,095.62 and 471,716.20

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Solution

The fourth proportional to 853,692.76, 1,178,095.62 and 471,716.20 is: 650,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,692.76 : 1,178,095.62 = 471,716.20 : x
  2. Step 2: Convert to fraction form
    853,692.76/1,178,095.62 = 471,716.20/x
  3. Step 3: Cross multiply
    853,692.76x = 1,178,095.62 × 471,716.20
  4. Step 4: Simplify right side
    853,692.76x = 555,726,789,103.04
  5. Step 5: Solve for x
    x = 555,726,789,103.04/853,692.76
  6. Step 6: Final answer
    x = 650,968.14

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.