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Finding the Fourth Proportional to 882,005.10, 1,323,007.65 and 615,201.90

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Solution

The fourth proportional to 882,005.10, 1,323,007.65 and 615,201.90 is: 922,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,005.10 : 1,323,007.65 = 615,201.90 : x
  2. Step 2: Convert to fraction form
    882,005.10/1,323,007.65 = 615,201.90/x
  3. Step 3: Cross multiply
    882,005.10x = 1,323,007.65 × 615,201.90
  4. Step 4: Simplify right side
    882,005.10x = 813,916,819,994.54
  5. Step 5: Solve for x
    x = 813,916,819,994.54/882,005.10
  6. Step 6: Final answer
    x = 922,802.85

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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.