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Finding the Fourth Proportional to 534,614.48, 737,768.55 and 289,599.81

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Solution

The fourth proportional to 534,614.48, 737,768.55 and 289,599.81 is: 399,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,614.48 : 737,768.55 = 289,599.81 : x
  2. Step 2: Convert to fraction form
    534,614.48/737,768.55 = 289,599.81/x
  3. Step 3: Cross multiply
    534,614.48x = 737,768.55 × 289,599.81
  4. Step 4: Simplify right side
    534,614.48x = 213,657,630,223.34
  5. Step 5: Solve for x
    x = 213,657,630,223.34/534,614.48
  6. Step 6: Final answer
    x = 399,648.04

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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.