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Finding the Fourth Proportional to 493,271.10, 740,101.05 and 193,700.70

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Solution

The fourth proportional to 493,271.10, 740,101.05 and 193,700.70 is: 290,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,271.10 : 740,101.05 = 193,700.70 : x
  2. Step 2: Convert to fraction form
    493,271.10/740,101.05 = 193,700.70/x
  3. Step 3: Cross multiply
    493,271.10x = 740,101.05 × 193,700.70
  4. Step 4: Simplify right side
    493,271.10x = 143,358,091,455.74
  5. Step 5: Solve for x
    x = 143,358,091,455.74/493,271.10
  6. Step 6: Final answer
    x = 290,627.39

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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.