Home / 472,392,005.70-708,588,008.55-349,947,999.30

Finding the Fourth Proportional to 472,392,005.70, 708,588,008.55 and 349,947,999.30

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Solution

The fourth proportional to 472,392,005.70, 708,588,008.55 and 349,947,999.30 is: 524,921,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,005.70 : 708,588,008.55 = 349,947,999.30 : x
  2. Step 2: Convert to fraction form
    472,392,005.70/708,588,008.55 = 349,947,999.30/x
  3. Step 3: Cross multiply
    472,392,005.70x = 708,588,008.55 × 349,947,999.30
  4. Step 4: Simplify right side
    472,392,005.70x = 247,968,955,920,043,776
  5. Step 5: Solve for x
    x = 247,968,955,920,043,776/472,392,005.70
  6. Step 6: Final answer
    x = 524,921,998.95

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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.