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Finding the Fourth Proportional to 576,552.59, 864,831.95 and 378,129.50

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Solution

The fourth proportional to 576,552.59, 864,831.95 and 378,129.50 is: 567,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,552.59 : 864,831.95 = 378,129.50 : x
  2. Step 2: Convert to fraction form
    576,552.59/864,831.95 = 378,129.50/x
  3. Step 3: Cross multiply
    576,552.59x = 864,831.95 × 378,129.50
  4. Step 4: Simplify right side
    576,552.59x = 327,018,466,622.72
  5. Step 5: Solve for x
    x = 327,018,466,622.72/576,552.59
  6. Step 6: Final answer
    x = 567,196.25

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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.