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Finding the Fourth Proportional to 510,175.68, 765,559.23 and 257,475.93

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Solution

The fourth proportional to 510,175.68, 765,559.23 and 257,475.93 is: 386,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,175.68 : 765,559.23 = 257,475.93 : x
  2. Step 2: Convert to fraction form
    510,175.68/765,559.23 = 257,475.93/x
  3. Step 3: Cross multiply
    510,175.68x = 765,559.23 × 257,475.93
  4. Step 4: Simplify right side
    510,175.68x = 197,113,074,714.33
  5. Step 5: Solve for x
    x = 197,113,074,714.33/510,175.68
  6. Step 6: Final answer
    x = 386,363.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.