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Finding the Fourth Proportional to 351,007.20, 526,510.80 and 173,860.20

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Solution

The fourth proportional to 351,007.20, 526,510.80 and 173,860.20 is: 260,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,007.20 : 526,510.80 = 173,860.20 : x
  2. Step 2: Convert to fraction form
    351,007.20/526,510.80 = 173,860.20/x
  3. Step 3: Cross multiply
    351,007.20x = 526,510.80 × 173,860.20
  4. Step 4: Simplify right side
    351,007.20x = 91,539,272,990.16
  5. Step 5: Solve for x
    x = 91,539,272,990.16/351,007.20
  6. Step 6: Final answer
    x = 260,790.30

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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.