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Finding the Fourth Proportional to 704,831.69, 972,668.69 and 382,541.81

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Solution

The fourth proportional to 704,831.69, 972,668.69 and 382,541.81 is: 527,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,831.69 : 972,668.69 = 382,541.81 : x
  2. Step 2: Convert to fraction form
    704,831.69/972,668.69 = 382,541.81/x
  3. Step 3: Cross multiply
    704,831.69x = 972,668.69 × 382,541.81
  4. Step 4: Simplify right side
    704,831.69x = 372,086,434,426.88
  5. Step 5: Solve for x
    x = 372,086,434,426.88/704,831.69
  6. Step 6: Final answer
    x = 527,908.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.