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Finding the Fourth Proportional to 562,256.12, 775,900.13 and 307,609.40

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Solution

The fourth proportional to 562,256.12, 775,900.13 and 307,609.40 is: 424,493.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,256.12 : 775,900.13 = 307,609.40 : x
  2. Step 2: Convert to fraction form
    562,256.12/775,900.13 = 307,609.40/x
  3. Step 3: Cross multiply
    562,256.12x = 775,900.13 × 307,609.40
  4. Step 4: Simplify right side
    562,256.12x = 238,674,173,449.22
  5. Step 5: Solve for x
    x = 238,674,173,449.22/562,256.12
  6. Step 6: Final answer
    x = 424,493.69

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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.