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Finding the Fourth Proportional to 535,145.92, 738,492.78 and 293,430.52

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Solution

The fourth proportional to 535,145.92, 738,492.78 and 293,430.52 is: 404,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,145.92 : 738,492.78 = 293,430.52 : x
  2. Step 2: Convert to fraction form
    535,145.92/738,492.78 = 293,430.52/x
  3. Step 3: Cross multiply
    535,145.92x = 738,492.78 × 293,430.52
  4. Step 4: Simplify right side
    535,145.92x = 216,696,320,451.65
  5. Step 5: Solve for x
    x = 216,696,320,451.65/535,145.92
  6. Step 6: Final answer
    x = 404,929.41

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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.