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Finding the Fourth Proportional to 317,868.94, 438,666.87 and 174,638.26

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Solution

The fourth proportional to 317,868.94, 438,666.87 and 174,638.26 is: 241,005.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,868.94 : 438,666.87 = 174,638.26 : x
  2. Step 2: Convert to fraction form
    317,868.94/438,666.87 = 174,638.26/x
  3. Step 3: Cross multiply
    317,868.94x = 438,666.87 × 174,638.26
  4. Step 4: Simplify right side
    317,868.94x = 76,608,018,896.45
  5. Step 5: Solve for x
    x = 76,608,018,896.45/317,868.94
  6. Step 6: Final answer
    x = 241,005.05

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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.