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Finding the Fourth Proportional to 508,806.48, 763,225.92 and 255,948.84

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Solution

The fourth proportional to 508,806.48, 763,225.92 and 255,948.84 is: 383,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,806.48 : 763,225.92 = 255,948.84 : x
  2. Step 2: Convert to fraction form
    508,806.48/763,225.92 = 255,948.84/x
  3. Step 3: Cross multiply
    508,806.48x = 763,225.92 × 255,948.84
  4. Step 4: Simplify right side
    508,806.48x = 195,346,788,881.93
  5. Step 5: Solve for x
    x = 195,346,788,881.93/508,806.48
  6. Step 6: Final answer
    x = 383,931.41

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1.5x scale

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.