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Finding the Fourth Proportional to 633,470.16, 874,157.76 and 346,991.52

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Solution

The fourth proportional to 633,470.16, 874,157.76 and 346,991.52 is: 478,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,470.16 : 874,157.76 = 346,991.52 : x
  2. Step 2: Convert to fraction form
    633,470.16/874,157.76 = 346,991.52/x
  3. Step 3: Cross multiply
    633,470.16x = 874,157.76 × 346,991.52
  4. Step 4: Simplify right side
    633,470.16x = 303,325,329,862.20
  5. Step 5: Solve for x
    x = 303,325,329,862.20/633,470.16
  6. Step 6: Final answer
    x = 478,831.28

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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.