Home / 685,159.16-945,495.51-379,236.14

Finding the Fourth Proportional to 685,159.16, 945,495.51 and 379,236.14

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Solution

The fourth proportional to 685,159.16, 945,495.51 and 379,236.14 is: 523,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,159.16 : 945,495.51 = 379,236.14 : x
  2. Step 2: Convert to fraction form
    685,159.16/945,495.51 = 379,236.14/x
  3. Step 3: Cross multiply
    685,159.16x = 945,495.51 × 379,236.14
  4. Step 4: Simplify right side
    685,159.16x = 358,566,067,599.73
  5. Step 5: Solve for x
    x = 358,566,067,599.73/685,159.16
  6. Step 6: Final answer
    x = 523,332.52

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1.5x scale

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.