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Finding the Fourth Proportional to 493,607.40, 740,702.70 and 360,151.80

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Solution

The fourth proportional to 493,607.40, 740,702.70 and 360,151.80 is: 540,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,607.40 : 740,702.70 = 360,151.80 : x
  2. Step 2: Convert to fraction form
    493,607.40/740,702.70 = 360,151.80/x
  3. Step 3: Cross multiply
    493,607.40x = 740,702.70 × 360,151.80
  4. Step 4: Simplify right side
    493,607.40x = 266,765,410,669.86
  5. Step 5: Solve for x
    x = 266,765,410,669.86/493,607.40
  6. Step 6: Final answer
    x = 540,440.46

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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.