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Finding the Fourth Proportional to 345,653.16, 477,029.76 and 190,634.76

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Solution

The fourth proportional to 345,653.16, 477,029.76 and 190,634.76 is: 263,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,653.16 : 477,029.76 = 190,634.76 : x
  2. Step 2: Convert to fraction form
    345,653.16/477,029.76 = 190,634.76/x
  3. Step 3: Cross multiply
    345,653.16x = 477,029.76 × 190,634.76
  4. Step 4: Simplify right side
    345,653.16x = 90,938,453,810.46
  5. Step 5: Solve for x
    x = 90,938,453,810.46/345,653.16
  6. Step 6: Final answer
    x = 263,091.63

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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.