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Finding the Fourth Proportional to 582,575,910.64, 803,966,608 and 318,275,022.40

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Solution

The fourth proportional to 582,575,910.64, 803,966,608 and 318,275,022.40 is: 439,226,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,575,910.64 : 803,966,608 = 318,275,022.40 : x
  2. Step 2: Convert to fraction form
    582,575,910.64/803,966,608 = 318,275,022.40/x
  3. Step 3: Cross multiply
    582,575,910.64x = 803,966,608 × 318,275,022.40
  4. Step 4: Simplify right side
    582,575,910.64x = 255,882,490,170,052,000
  5. Step 5: Solve for x
    x = 255,882,490,170,052,000/582,575,910.64
  6. Step 6: Final answer
    x = 439,226,005.57

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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.