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Finding the Fourth Proportional to 763,607.76, 1,053,749.76 and 424,097.76

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Solution

The fourth proportional to 763,607.76, 1,053,749.76 and 424,097.76 is: 585,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,607.76 : 1,053,749.76 = 424,097.76 : x
  2. Step 2: Convert to fraction form
    763,607.76/1,053,749.76 = 424,097.76/x
  3. Step 3: Cross multiply
    763,607.76x = 1,053,749.76 × 424,097.76
  4. Step 4: Simplify right side
    763,607.76x = 446,892,912,816.54
  5. Step 5: Solve for x
    x = 446,892,912,816.54/763,607.76
  6. Step 6: Final answer
    x = 585,238.83

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1.5x scale

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.