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Finding the Fourth Proportional to 561,429.65, 774,829.98 and 332,061.19

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Solution

The fourth proportional to 561,429.65, 774,829.98 and 332,061.19 is: 458,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,429.65 : 774,829.98 = 332,061.19 : x
  2. Step 2: Convert to fraction form
    561,429.65/774,829.98 = 332,061.19/x
  3. Step 3: Cross multiply
    561,429.65x = 774,829.98 × 332,061.19
  4. Step 4: Simplify right side
    561,429.65x = 257,290,963,269.40
  5. Step 5: Solve for x
    x = 257,290,963,269.40/561,429.65
  6. Step 6: Final answer
    x = 458,278.19

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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.