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Finding the Fourth Proportional to 611,464.50, 916,197.89 and 371,651.76

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Solution

The fourth proportional to 611,464.50, 916,197.89 and 371,651.76 is: 556,870.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,464.50 : 916,197.89 = 371,651.76 : x
  2. Step 2: Convert to fraction form
    611,464.50/916,197.89 = 371,651.76/x
  3. Step 3: Cross multiply
    611,464.50x = 916,197.89 × 371,651.76
  4. Step 4: Simplify right side
    611,464.50x = 340,506,556,468.53
  5. Step 5: Solve for x
    x = 340,506,556,468.53/611,464.50
  6. Step 6: Final answer
    x = 556,870.52

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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.