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Finding the Fourth Proportional to 493,663.20, 740,494.80 and 283,322.40

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Solution

The fourth proportional to 493,663.20, 740,494.80 and 283,322.40 is: 424,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,663.20 : 740,494.80 = 283,322.40 : x
  2. Step 2: Convert to fraction form
    493,663.20/740,494.80 = 283,322.40/x
  3. Step 3: Cross multiply
    493,663.20x = 740,494.80 × 283,322.40
  4. Step 4: Simplify right side
    493,663.20x = 209,798,763,923.52
  5. Step 5: Solve for x
    x = 209,798,763,923.52/493,663.20
  6. Step 6: Final answer
    x = 424,983.60

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Similar ratio
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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.