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Finding the Fourth Proportional to 426,898.91, 589,097.30 and 235,900

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Solution

The fourth proportional to 426,898.91, 589,097.30 and 235,900 is: 325,529.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,898.91 : 589,097.30 = 235,900 : x
  2. Step 2: Convert to fraction form
    426,898.91/589,097.30 = 235,900/x
  3. Step 3: Cross multiply
    426,898.91x = 589,097.30 × 235,900
  4. Step 4: Simplify right side
    426,898.91x = 138,968,053,070
  5. Step 5: Solve for x
    x = 138,968,053,070/426,898.91
  6. Step 6: Final answer
    x = 325,529.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.