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Finding the Fourth Proportional to 355,063.60, 532,595.40 and 299,076.40

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Solution

The fourth proportional to 355,063.60, 532,595.40 and 299,076.40 is: 448,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,063.60 : 532,595.40 = 299,076.40 : x
  2. Step 2: Convert to fraction form
    355,063.60/532,595.40 = 299,076.40/x
  3. Step 3: Cross multiply
    355,063.60x = 532,595.40 × 299,076.40
  4. Step 4: Simplify right side
    355,063.60x = 159,286,714,888.56
  5. Step 5: Solve for x
    x = 159,286,714,888.56/355,063.60
  6. Step 6: Final answer
    x = 448,614.60

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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.