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Finding the Fourth Proportional to 441,415.71, 609,111.54 and 247,779.05

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Solution

The fourth proportional to 441,415.71, 609,111.54 and 247,779.05 is: 341,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,415.71 : 609,111.54 = 247,779.05 : x
  2. Step 2: Convert to fraction form
    441,415.71/609,111.54 = 247,779.05/x
  3. Step 3: Cross multiply
    441,415.71x = 609,111.54 × 247,779.05
  4. Step 4: Simplify right side
    441,415.71x = 150,925,075,679.68
  5. Step 5: Solve for x
    x = 150,925,075,679.68/441,415.71
  6. Step 6: Final answer
    x = 341,911.43

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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.