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Finding the Fourth Proportional to 355,275.10, 532,912.65 and 307,582.30

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Solution

The fourth proportional to 355,275.10, 532,912.65 and 307,582.30 is: 461,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,275.10 : 532,912.65 = 307,582.30 : x
  2. Step 2: Convert to fraction form
    355,275.10/532,912.65 = 307,582.30/x
  3. Step 3: Cross multiply
    355,275.10x = 532,912.65 × 307,582.30
  4. Step 4: Simplify right side
    355,275.10x = 163,914,498,586.10
  5. Step 5: Solve for x
    x = 163,914,498,586.10/355,275.10
  6. Step 6: Final answer
    x = 461,373.45

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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.