Home / 926,131.70-1,389,197.55-393,670.10

Finding the Fourth Proportional to 926,131.70, 1,389,197.55 and 393,670.10

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Solution

The fourth proportional to 926,131.70, 1,389,197.55 and 393,670.10 is: 590,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,131.70 : 1,389,197.55 = 393,670.10 : x
  2. Step 2: Convert to fraction form
    926,131.70/1,389,197.55 = 393,670.10/x
  3. Step 3: Cross multiply
    926,131.70x = 1,389,197.55 × 393,670.10
  4. Step 4: Simplify right side
    926,131.70x = 546,885,538,428.26
  5. Step 5: Solve for x
    x = 546,885,538,428.26/926,131.70
  6. Step 6: Final answer
    x = 590,505.15

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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.