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Finding the Fourth Proportional to 567,180.45, 782,699.76 and 309,060.51

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Solution

The fourth proportional to 567,180.45, 782,699.76 and 309,060.51 is: 426,498.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,180.45 : 782,699.76 = 309,060.51 : x
  2. Step 2: Convert to fraction form
    567,180.45/782,699.76 = 309,060.51/x
  3. Step 3: Cross multiply
    567,180.45x = 782,699.76 × 309,060.51
  4. Step 4: Simplify right side
    567,180.45x = 241,901,587,002.48
  5. Step 5: Solve for x
    x = 241,901,587,002.48/567,180.45
  6. Step 6: Final answer
    x = 426,498.46

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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.