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Finding the Fourth Proportional to 491,421.60, 737,132.40 and 175,888.80

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Solution

The fourth proportional to 491,421.60, 737,132.40 and 175,888.80 is: 263,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,421.60 : 737,132.40 = 175,888.80 : x
  2. Step 2: Convert to fraction form
    491,421.60/737,132.40 = 175,888.80/x
  3. Step 3: Cross multiply
    491,421.60x = 737,132.40 × 175,888.80
  4. Step 4: Simplify right side
    491,421.60x = 129,653,333,277.12
  5. Step 5: Solve for x
    x = 129,653,333,277.12/491,421.60
  6. Step 6: Final answer
    x = 263,833.20

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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.