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Finding the Fourth Proportional to 562,168.21, 775,798.29 and 307,519.40

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Solution

The fourth proportional to 562,168.21, 775,798.29 and 307,519.40 is: 424,380.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,168.21 : 775,798.29 = 307,519.40 : x
  2. Step 2: Convert to fraction form
    562,168.21/775,798.29 = 307,519.40/x
  3. Step 3: Cross multiply
    562,168.21x = 775,798.29 × 307,519.40
  4. Step 4: Simplify right side
    562,168.21x = 238,573,023,124.23
  5. Step 5: Solve for x
    x = 238,573,023,124.23/562,168.21
  6. Step 6: Final answer
    x = 424,380.14

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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.