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Finding the Fourth Proportional to 477,831.16, 715,905.94 and 449,385.58

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Solution

The fourth proportional to 477,831.16, 715,905.94 and 449,385.58 is: 673,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,831.16 : 715,905.94 = 449,385.58 : x
  2. Step 2: Convert to fraction form
    477,831.16/715,905.94 = 449,385.58/x
  3. Step 3: Cross multiply
    477,831.16x = 715,905.94 × 449,385.58
  4. Step 4: Simplify right side
    477,831.16x = 321,717,803,159.12
  5. Step 5: Solve for x
    x = 321,717,803,159.12/477,831.16
  6. Step 6: Final answer
    x = 673,287.62

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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.