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Finding the Fourth Proportional to 663,810,276.45, 927,520,401.75 and 663,810,276.45

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Solution

The fourth proportional to 663,810,276.45, 927,520,401.75 and 663,810,276.45 is: 927,520,401.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,810,276.45 : 927,520,401.75 = 663,810,276.45 : x
  2. Step 2: Convert to fraction form
    663,810,276.45/927,520,401.75 = 663,810,276.45/x
  3. Step 3: Cross multiply
    663,810,276.45x = 927,520,401.75 × 663,810,276.45
  4. Step 4: Simplify right side
    663,810,276.45x = 615,697,574,298,682,624
  5. Step 5: Solve for x
    x = 615,697,574,298,682,624/663,810,276.45
  6. Step 6: Final answer
    x = 927,520,401.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.