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Finding the Fourth Proportional to 527,995,173.76, 728,670,167.73 and 349,068,192.01

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Solution

The fourth proportional to 527,995,173.76, 728,670,167.73 and 349,068,192.01 is: 481,738,452.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,995,173.76 : 728,670,167.73 = 349,068,192.01 : x
  2. Step 2: Convert to fraction form
    527,995,173.76/728,670,167.73 = 349,068,192.01/x
  3. Step 3: Cross multiply
    527,995,173.76x = 728,670,167.73 × 349,068,192.01
  4. Step 4: Simplify right side
    527,995,173.76x = 254,355,578,019,312,864
  5. Step 5: Solve for x
    x = 254,355,578,019,312,864/527,995,173.76
  6. Step 6: Final answer
    x = 481,738,452.66

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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.