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Finding the Fourth Proportional to 538,813.90, 808,220.85 and 184,228.30

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Solution

The fourth proportional to 538,813.90, 808,220.85 and 184,228.30 is: 276,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,813.90 : 808,220.85 = 184,228.30 : x
  2. Step 2: Convert to fraction form
    538,813.90/808,220.85 = 184,228.30/x
  3. Step 3: Cross multiply
    538,813.90x = 808,220.85 × 184,228.30
  4. Step 4: Simplify right side
    538,813.90x = 148,897,153,220.06
  5. Step 5: Solve for x
    x = 148,897,153,220.06/538,813.90
  6. Step 6: Final answer
    x = 276,342.45

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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.