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Finding the Fourth Proportional to 472,085.02, 651,469.08 and 257,226.88

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Solution

The fourth proportional to 472,085.02, 651,469.08 and 257,226.88 is: 354,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,085.02 : 651,469.08 = 257,226.88 : x
  2. Step 2: Convert to fraction form
    472,085.02/651,469.08 = 257,226.88/x
  3. Step 3: Cross multiply
    472,085.02x = 651,469.08 × 257,226.88
  4. Step 4: Simplify right side
    472,085.02x = 167,575,358,864.87
  5. Step 5: Solve for x
    x = 167,575,358,864.87/472,085.02
  6. Step 6: Final answer
    x = 354,968.60

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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.