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Finding the Fourth Proportional to 641,277.72, 884,706.03 and 369,199.62

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Solution

The fourth proportional to 641,277.72, 884,706.03 and 369,199.62 is: 509,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,277.72 : 884,706.03 = 369,199.62 : x
  2. Step 2: Convert to fraction form
    641,277.72/884,706.03 = 369,199.62/x
  3. Step 3: Cross multiply
    641,277.72x = 884,706.03 × 369,199.62
  4. Step 4: Simplify right side
    641,277.72x = 326,633,130,087.71
  5. Step 5: Solve for x
    x = 326,633,130,087.71/641,277.72
  6. Step 6: Final answer
    x = 509,347.39

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Double scale
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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.