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Finding the Fourth Proportional to 806,688.60, 1,210,032.90 and 806,688.60

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Solution

The fourth proportional to 806,688.60, 1,210,032.90 and 806,688.60 is: 1,210,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,688.60 : 1,210,032.90 = 806,688.60 : x
  2. Step 2: Convert to fraction form
    806,688.60/1,210,032.90 = 806,688.60/x
  3. Step 3: Cross multiply
    806,688.60x = 1,210,032.90 × 806,688.60
  4. Step 4: Simplify right side
    806,688.60x = 976,119,746,054.94
  5. Step 5: Solve for x
    x = 976,119,746,054.94/806,688.60
  6. Step 6: Final answer
    x = 1,210,032.90

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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.