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Finding the Fourth Proportional to 907,484.81, 1,361,227.64 and 374,419.95

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Solution

The fourth proportional to 907,484.81, 1,361,227.64 and 374,419.95 is: 561,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,484.81 : 1,361,227.64 = 374,419.95 : x
  2. Step 2: Convert to fraction form
    907,484.81/1,361,227.64 = 374,419.95/x
  3. Step 3: Cross multiply
    907,484.81x = 1,361,227.64 × 374,419.95
  4. Step 4: Simplify right side
    907,484.81x = 509,670,783,035.32
  5. Step 5: Solve for x
    x = 509,670,783,035.32/907,484.81
  6. Step 6: Final answer
    x = 561,630.10

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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.