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Finding the Fourth Proportional to 369,355.13, 510,130.46 and 248,286.45

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Solution

The fourth proportional to 369,355.13, 510,130.46 and 248,286.45 is: 342,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,355.13 : 510,130.46 = 248,286.45 : x
  2. Step 2: Convert to fraction form
    369,355.13/510,130.46 = 248,286.45/x
  3. Step 3: Cross multiply
    369,355.13x = 510,130.46 × 248,286.45
  4. Step 4: Simplify right side
    369,355.13x = 126,658,479,708.84
  5. Step 5: Solve for x
    x = 126,658,479,708.84/369,355.13
  6. Step 6: Final answer
    x = 342,917.89

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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.