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Finding the Fourth Proportional to 358,048.96, 494,069.28 and 207,117.76

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Solution

The fourth proportional to 358,048.96, 494,069.28 and 207,117.76 is: 285,800.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,048.96 : 494,069.28 = 207,117.76 : x
  2. Step 2: Convert to fraction form
    358,048.96/494,069.28 = 207,117.76/x
  3. Step 3: Cross multiply
    358,048.96x = 494,069.28 × 207,117.76
  4. Step 4: Simplify right side
    358,048.96x = 102,330,522,558.41
  5. Step 5: Solve for x
    x = 102,330,522,558.41/358,048.96
  6. Step 6: Final answer
    x = 285,800.36

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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.