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Finding the Fourth Proportional to 671,917.78, 927,246.59 and 370,111.78

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Solution

The fourth proportional to 671,917.78, 927,246.59 and 370,111.78 is: 510,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,917.78 : 927,246.59 = 370,111.78 : x
  2. Step 2: Convert to fraction form
    671,917.78/927,246.59 = 370,111.78/x
  3. Step 3: Cross multiply
    671,917.78x = 927,246.59 × 370,111.78
  4. Step 4: Simplify right side
    671,917.78x = 343,184,886,620.25
  5. Step 5: Solve for x
    x = 343,184,886,620.25/671,917.78
  6. Step 6: Final answer
    x = 510,754.29

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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.