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Finding the Fourth Proportional to 330,263.16, 455,763.13 and 187,050.88

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Solution

The fourth proportional to 330,263.16, 455,763.13 and 187,050.88 is: 258,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,263.16 : 455,763.13 = 187,050.88 : x
  2. Step 2: Convert to fraction form
    330,263.16/455,763.13 = 187,050.88/x
  3. Step 3: Cross multiply
    330,263.16x = 455,763.13 × 187,050.88
  4. Step 4: Simplify right side
    330,263.16x = 85,250,894,538.05
  5. Step 5: Solve for x
    x = 85,250,894,538.05/330,263.16
  6. Step 6: Final answer
    x = 258,130.20

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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.