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Finding the Fourth Proportional to 822,643.92, 1,233,196.92 and 289,866.96

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Solution

The fourth proportional to 822,643.92, 1,233,196.92 and 289,866.96 is: 434,529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,643.92 : 1,233,196.92 = 289,866.96 : x
  2. Step 2: Convert to fraction form
    822,643.92/1,233,196.92 = 289,866.96/x
  3. Step 3: Cross multiply
    822,643.92x = 1,233,196.92 × 289,866.96
  4. Step 4: Simplify right side
    822,643.92x = 357,463,042,281.76
  5. Step 5: Solve for x
    x = 357,463,042,281.76/822,643.92
  6. Step 6: Final answer
    x = 434,529.49

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1.5x scale

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.