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Finding the Fourth Proportional to 533,638.13, 736,595.57 and 383,172.53

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Solution

The fourth proportional to 533,638.13, 736,595.57 and 383,172.53 is: 528,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,638.13 : 736,595.57 = 383,172.53 : x
  2. Step 2: Convert to fraction form
    533,638.13/736,595.57 = 383,172.53/x
  3. Step 3: Cross multiply
    533,638.13x = 736,595.57 × 383,172.53
  4. Step 4: Simplify right side
    533,638.13x = 282,243,185,418.65
  5. Step 5: Solve for x
    x = 282,243,185,418.65/533,638.13
  6. Step 6: Final answer
    x = 528,903.71

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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.