Home / 472,392,711.30-708,589,066.95-432,215,771.70

Finding the Fourth Proportional to 472,392,711.30, 708,589,066.95 and 432,215,771.70

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Solution

The fourth proportional to 472,392,711.30, 708,589,066.95 and 432,215,771.70 is: 648,323,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,711.30 : 708,589,066.95 = 432,215,771.70 : x
  2. Step 2: Convert to fraction form
    472,392,711.30/708,589,066.95 = 432,215,771.70/x
  3. Step 3: Cross multiply
    472,392,711.30x = 708,589,066.95 × 432,215,771.70
  4. Step 4: Simplify right side
    472,392,711.30x = 306,263,370,389,977,216
  5. Step 5: Solve for x
    x = 306,263,370,389,977,216/472,392,711.30
  6. Step 6: Final answer
    x = 648,323,657.55

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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.