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Finding the Fourth Proportional to 351,276.40, 484,760.88 and 190,131.40

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Solution

The fourth proportional to 351,276.40, 484,760.88 and 190,131.40 is: 262,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,276.40 : 484,760.88 = 190,131.40 : x
  2. Step 2: Convert to fraction form
    351,276.40/484,760.88 = 190,131.40/x
  3. Step 3: Cross multiply
    351,276.40x = 484,760.88 × 190,131.40
  4. Step 4: Simplify right side
    351,276.40x = 92,168,264,779.63
  5. Step 5: Solve for x
    x = 92,168,264,779.63/351,276.40
  6. Step 6: Final answer
    x = 262,381.03

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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.