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Finding the Fourth Proportional to 538,941.70, 808,412.55 and 183,967.30

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Solution

The fourth proportional to 538,941.70, 808,412.55 and 183,967.30 is: 275,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,941.70 : 808,412.55 = 183,967.30 : x
  2. Step 2: Convert to fraction form
    538,941.70/808,412.55 = 183,967.30/x
  3. Step 3: Cross multiply
    538,941.70x = 808,412.55 × 183,967.30
  4. Step 4: Simplify right side
    538,941.70x = 148,721,474,109.62
  5. Step 5: Solve for x
    x = 148,721,474,109.62/538,941.70
  6. Step 6: Final answer
    x = 275,950.95

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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.