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Finding the Fourth Proportional to 493,302.40, 740,731.20 and 283,350.40

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Solution

The fourth proportional to 493,302.40, 740,731.20 and 283,350.40 is: 425,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,302.40 : 740,731.20 = 283,350.40 : x
  2. Step 2: Convert to fraction form
    493,302.40/740,731.20 = 283,350.40/x
  3. Step 3: Cross multiply
    493,302.40x = 740,731.20 × 283,350.40
  4. Step 4: Simplify right side
    493,302.40x = 209,886,481,812.48
  5. Step 5: Solve for x
    x = 209,886,481,812.48/493,302.40
  6. Step 6: Final answer
    x = 425,472.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.