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Finding the Fourth Proportional to 483,498.52, 666,689.88 and 330,561.52

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Solution

The fourth proportional to 483,498.52, 666,689.88 and 330,561.52 is: 455,807.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,498.52 : 666,689.88 = 330,561.52 : x
  2. Step 2: Convert to fraction form
    483,498.52/666,689.88 = 330,561.52/x
  3. Step 3: Cross multiply
    483,498.52x = 666,689.88 × 330,561.52
  4. Step 4: Simplify right side
    483,498.52x = 220,382,020,101.42
  5. Step 5: Solve for x
    x = 220,382,020,101.42/483,498.52
  6. Step 6: Final answer
    x = 455,807.02

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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.