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Finding the Fourth Proportional to 493,762.40, 740,643.60 and 119,785.40

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Solution

The fourth proportional to 493,762.40, 740,643.60 and 119,785.40 is: 179,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,762.40 : 740,643.60 = 119,785.40 : x
  2. Step 2: Convert to fraction form
    493,762.40/740,643.60 = 119,785.40/x
  3. Step 3: Cross multiply
    493,762.40x = 740,643.60 × 119,785.40
  4. Step 4: Simplify right side
    493,762.40x = 88,718,289,883.44
  5. Step 5: Solve for x
    x = 88,718,289,883.44/493,762.40
  6. Step 6: Final answer
    x = 179,678.10

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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.