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Finding the Fourth Proportional to 521,778.40, 783,018.30 and 184,817.84

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Solution

The fourth proportional to 521,778.40, 783,018.30 and 184,817.84 is: 277,350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,778.40 : 783,018.30 = 184,817.84 : x
  2. Step 2: Convert to fraction form
    521,778.40/783,018.30 = 184,817.84/x
  3. Step 3: Cross multiply
    521,778.40x = 783,018.30 × 184,817.84
  4. Step 4: Simplify right side
    521,778.40x = 144,715,750,886.47
  5. Step 5: Solve for x
    x = 144,715,750,886.47/521,778.40
  6. Step 6: Final answer
    x = 277,350.98

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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.