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Finding the Fourth Proportional to 469,074.16, 647,320.71 and 254,219.50

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Solution

The fourth proportional to 469,074.16, 647,320.71 and 254,219.50 is: 350,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,074.16 : 647,320.71 = 254,219.50 : x
  2. Step 2: Convert to fraction form
    469,074.16/647,320.71 = 254,219.50/x
  3. Step 3: Cross multiply
    469,074.16x = 647,320.71 × 254,219.50
  4. Step 4: Simplify right side
    469,074.16x = 164,561,547,235.85
  5. Step 5: Solve for x
    x = 164,561,547,235.85/469,074.16
  6. Step 6: Final answer
    x = 350,822.03

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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.