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Finding the Fourth Proportional to 603,064.80, 908,931.93 and 519,829.56

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Solution

The fourth proportional to 603,064.80, 908,931.93 and 519,829.56 is: 783,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,064.80 : 908,931.93 = 519,829.56 : x
  2. Step 2: Convert to fraction form
    603,064.80/908,931.93 = 519,829.56/x
  3. Step 3: Cross multiply
    603,064.80x = 908,931.93 × 519,829.56
  4. Step 4: Simplify right side
    603,064.80x = 472,489,686,216.53
  5. Step 5: Solve for x
    x = 472,489,686,216.53/603,064.80
  6. Step 6: Final answer
    x = 783,480.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.