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Finding the Fourth Proportional to 358,279.92, 537,481.08 and 147,802.80

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Solution

The fourth proportional to 358,279.92, 537,481.08 and 147,802.80 is: 221,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,279.92 : 537,481.08 = 147,802.80 : x
  2. Step 2: Convert to fraction form
    358,279.92/537,481.08 = 147,802.80/x
  3. Step 3: Cross multiply
    358,279.92x = 537,481.08 × 147,802.80
  4. Step 4: Simplify right side
    358,279.92x = 79,441,208,571.02
  5. Step 5: Solve for x
    x = 79,441,208,571.02/358,279.92
  6. Step 6: Final answer
    x = 221,729.45

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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.