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Finding the Fourth Proportional to 478,484.33, 717,866.82 and 141,533.84

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Solution

The fourth proportional to 478,484.33, 717,866.82 and 141,533.84 is: 212,342.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,484.33 : 717,866.82 = 141,533.84 : x
  2. Step 2: Convert to fraction form
    478,484.33/717,866.82 = 141,533.84/x
  3. Step 3: Cross multiply
    478,484.33x = 717,866.82 × 141,533.84
  4. Step 4: Simplify right side
    478,484.33x = 101,602,444,053.86
  5. Step 5: Solve for x
    x = 101,602,444,053.86/478,484.33
  6. Step 6: Final answer
    x = 212,342.26

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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.