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Finding the Fourth Proportional to 404,321.55, 606,482.33 and 358,831.95

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Solution

The fourth proportional to 404,321.55, 606,482.33 and 358,831.95 is: 538,247.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,321.55 : 606,482.33 = 358,831.95 : x
  2. Step 2: Convert to fraction form
    404,321.55/606,482.33 = 358,831.95/x
  3. Step 3: Cross multiply
    404,321.55x = 606,482.33 × 358,831.95
  4. Step 4: Simplify right side
    404,321.55x = 217,625,235,320.28
  5. Step 5: Solve for x
    x = 217,625,235,320.28/404,321.55
  6. Step 6: Final answer
    x = 538,247.93

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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.