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Finding the Fourth Proportional to 922,059.81, 1,271,727.14 and 818,802.63

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Solution

The fourth proportional to 922,059.81, 1,271,727.14 and 818,802.63 is: 1,129,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,059.81 : 1,271,727.14 = 818,802.63 : x
  2. Step 2: Convert to fraction form
    922,059.81/1,271,727.14 = 818,802.63/x
  3. Step 3: Cross multiply
    922,059.81x = 1,271,727.14 × 818,802.63
  4. Step 4: Simplify right side
    922,059.81x = 1,041,293,522,780.37
  5. Step 5: Solve for x
    x = 1,041,293,522,780.37/922,059.81
  6. Step 6: Final answer
    x = 1,129,312.34

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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.