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Finding the Fourth Proportional to 603,066.80, 908,934.95 and 519,831.56

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Solution

The fourth proportional to 603,066.80, 908,934.95 and 519,831.56 is: 783,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,066.80 : 908,934.95 = 519,831.56 : x
  2. Step 2: Convert to fraction form
    603,066.80/908,934.95 = 519,831.56/x
  3. Step 3: Cross multiply
    603,066.80x = 908,934.95 × 519,831.56
  4. Step 4: Simplify right side
    603,066.80x = 472,493,072,997.02
  5. Step 5: Solve for x
    x = 472,493,072,997.02/603,066.80
  6. Step 6: Final answer
    x = 783,483.81

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1.5x scale

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.