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Finding the Fourth Proportional to 772,891.80, 1,066,591.13 and 471,085.80

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Solution

The fourth proportional to 772,891.80, 1,066,591.13 and 471,085.80 is: 650,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,891.80 : 1,066,591.13 = 471,085.80 : x
  2. Step 2: Convert to fraction form
    772,891.80/1,066,591.13 = 471,085.80/x
  3. Step 3: Cross multiply
    772,891.80x = 1,066,591.13 × 471,085.80
  4. Step 4: Simplify right side
    772,891.80x = 502,455,933,393.53
  5. Step 5: Solve for x
    x = 502,455,933,393.53/772,891.80
  6. Step 6: Final answer
    x = 650,098.67

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Double scale
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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.