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Finding the Fourth Proportional to 562,699.47, 776,599.19 and 320,926.62

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Solution

The fourth proportional to 562,699.47, 776,599.19 and 320,926.62 is: 442,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,699.47 : 776,599.19 = 320,926.62 : x
  2. Step 2: Convert to fraction form
    562,699.47/776,599.19 = 320,926.62/x
  3. Step 3: Cross multiply
    562,699.47x = 776,599.19 × 320,926.62
  4. Step 4: Simplify right side
    562,699.47x = 249,231,353,141.44
  5. Step 5: Solve for x
    x = 249,231,353,141.44/562,699.47
  6. Step 6: Final answer
    x = 442,920.90

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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.