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Finding the Fourth Proportional to 535,722.42, 739,248 and 317,893.48

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Solution

The fourth proportional to 535,722.42, 739,248 and 317,893.48 is: 438,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,722.42 : 739,248 = 317,893.48 : x
  2. Step 2: Convert to fraction form
    535,722.42/739,248 = 317,893.48/x
  3. Step 3: Cross multiply
    535,722.42x = 739,248 × 317,893.48
  4. Step 4: Simplify right side
    535,722.42x = 235,002,119,303.04
  5. Step 5: Solve for x
    x = 235,002,119,303.04/535,722.42
  6. Step 6: Final answer
    x = 438,663.96

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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.