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Finding the Fourth Proportional to 922,645.80, 1,382,802.30 and 822,335.40

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Solution

The fourth proportional to 922,645.80, 1,382,802.30 and 822,335.40 is: 1,232,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,645.80 : 1,382,802.30 = 822,335.40 : x
  2. Step 2: Convert to fraction form
    922,645.80/1,382,802.30 = 822,335.40/x
  3. Step 3: Cross multiply
    922,645.80x = 1,382,802.30 × 822,335.40
  4. Step 4: Simplify right side
    922,645.80x = 1,137,127,282,491.42
  5. Step 5: Solve for x
    x = 1,137,127,282,491.42/922,645.80
  6. Step 6: Final answer
    x = 1,232,463.51

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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.