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Finding the Fourth Proportional to 493,698.60, 740,547.90 and 119,721.60

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Solution

The fourth proportional to 493,698.60, 740,547.90 and 119,721.60 is: 179,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,698.60 : 740,547.90 = 119,721.60 : x
  2. Step 2: Convert to fraction form
    493,698.60/740,547.90 = 119,721.60/x
  3. Step 3: Cross multiply
    493,698.60x = 740,547.90 × 119,721.60
  4. Step 4: Simplify right side
    493,698.60x = 88,659,579,464.64
  5. Step 5: Solve for x
    x = 88,659,579,464.64/493,698.60
  6. Step 6: Final answer
    x = 179,582.40

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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.