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Finding the Fourth Proportional to 3,207,851.63, 4,811,735.93 and 779,024.78

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Solution

The fourth proportional to 3,207,851.63, 4,811,735.93 and 779,024.78 is: 1,168,527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207,851.63 : 4,811,735.93 = 779,024.78 : x
  2. Step 2: Convert to fraction form
    3,207,851.63/4,811,735.93 = 779,024.78/x
  3. Step 3: Cross multiply
    3,207,851.63x = 4,811,735.93 × 779,024.78
  4. Step 4: Simplify right side
    3,207,851.63x = 3,748,461,496,332.54
  5. Step 5: Solve for x
    x = 3,748,461,496,332.54/3,207,851.63
  6. Step 6: Final answer
    x = 1,168,527.08

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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.