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Finding the Fourth Proportional to 555,254,147.74, 765,803,933.58 and 488,129,583.82

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Solution

The fourth proportional to 555,254,147.74, 765,803,933.58 and 488,129,583.82 is: 673,226,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,254,147.74 : 765,803,933.58 = 488,129,583.82 : x
  2. Step 2: Convert to fraction form
    555,254,147.74/765,803,933.58 = 488,129,583.82/x
  3. Step 3: Cross multiply
    555,254,147.74x = 765,803,933.58 × 488,129,583.82
  4. Step 4: Simplify right side
    555,254,147.74x = 373,811,555,386,124,352
  5. Step 5: Solve for x
    x = 373,811,555,386,124,352/555,254,147.74
  6. Step 6: Final answer
    x = 673,226,047.76

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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.