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Finding the Fourth Proportional to 349,276.50, 482,001.57 and 190,300.50

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Solution

The fourth proportional to 349,276.50, 482,001.57 and 190,300.50 is: 262,614.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,276.50 : 482,001.57 = 190,300.50 : x
  2. Step 2: Convert to fraction form
    349,276.50/482,001.57 = 190,300.50/x
  3. Step 3: Cross multiply
    349,276.50x = 482,001.57 × 190,300.50
  4. Step 4: Simplify right side
    349,276.50x = 91,725,139,771.79
  5. Step 5: Solve for x
    x = 91,725,139,771.79/349,276.50
  6. Step 6: Final answer
    x = 262,614.69

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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.