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Finding the Fourth Proportional to 641,140.65, 884,697.01 and 369,296.96

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Solution

The fourth proportional to 641,140.65, 884,697.01 and 369,296.96 is: 509,585.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,140.65 : 884,697.01 = 369,296.96 : x
  2. Step 2: Convert to fraction form
    641,140.65/884,697.01 = 369,296.96/x
  3. Step 3: Cross multiply
    641,140.65x = 884,697.01 × 369,296.96
  4. Step 4: Simplify right side
    641,140.65x = 326,715,910,967.36
  5. Step 5: Solve for x
    x = 326,715,910,967.36/641,140.65
  6. Step 6: Final answer
    x = 509,585.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.