Home / 656,140.36-905,473.74-354,334.36

Finding the Fourth Proportional to 656,140.36, 905,473.74 and 354,334.36

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Solution

The fourth proportional to 656,140.36, 905,473.74 and 354,334.36 is: 488,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,140.36 : 905,473.74 = 354,334.36 : x
  2. Step 2: Convert to fraction form
    656,140.36/905,473.74 = 354,334.36/x
  3. Step 3: Cross multiply
    656,140.36x = 905,473.74 × 354,334.36
  4. Step 4: Simplify right side
    656,140.36x = 320,840,458,159.71
  5. Step 5: Solve for x
    x = 320,840,458,159.71/656,140.36
  6. Step 6: Final answer
    x = 488,981.44

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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.