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Finding the Fourth Proportional to 483,329.40, 724,302.90 and 355,975.80

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Solution

The fourth proportional to 483,329.40, 724,302.90 and 355,975.80 is: 533,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,329.40 : 724,302.90 = 355,975.80 : x
  2. Step 2: Convert to fraction form
    483,329.40/724,302.90 = 355,975.80/x
  3. Step 3: Cross multiply
    483,329.40x = 724,302.90 × 355,975.80
  4. Step 4: Simplify right side
    483,329.40x = 257,834,304,269.82
  5. Step 5: Solve for x
    x = 257,834,304,269.82/483,329.40
  6. Step 6: Final answer
    x = 533,454.63

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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.