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Finding the Fourth Proportional to 922,714.80, 1,382,905.80 and 822,404.40

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Solution

The fourth proportional to 922,714.80, 1,382,905.80 and 822,404.40 is: 1,232,567.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,714.80 : 1,382,905.80 = 822,404.40 : x
  2. Step 2: Convert to fraction form
    922,714.80/1,382,905.80 = 822,404.40/x
  3. Step 3: Cross multiply
    922,714.80x = 1,382,905.80 × 822,404.40
  4. Step 4: Simplify right side
    922,714.80x = 1,137,307,814,705.52
  5. Step 5: Solve for x
    x = 1,137,307,814,705.52/922,714.80
  6. Step 6: Final answer
    x = 1,232,567.00

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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.