Home / 472,392,512.70-708,588,769.05-242,810,000.70

Finding the Fourth Proportional to 472,392,512.70, 708,588,769.05 and 242,810,000.70

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Solution

The fourth proportional to 472,392,512.70, 708,588,769.05 and 242,810,000.70 is: 364,215,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,512.70 : 708,588,769.05 = 242,810,000.70 : x
  2. Step 2: Convert to fraction form
    472,392,512.70/708,588,769.05 = 242,810,000.70/x
  3. Step 3: Cross multiply
    472,392,512.70x = 708,588,769.05 × 242,810,000.70
  4. Step 4: Simplify right side
    472,392,512.70x = 172,052,439,509,042,624
  5. Step 5: Solve for x
    x = 172,052,439,509,042,624/472,392,512.70
  6. Step 6: Final answer
    x = 364,215,001.05

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1.5x scale

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.