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Finding the Fourth Proportional to 748,407.76, 1,032,803.72 and 426,118

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Solution

The fourth proportional to 748,407.76, 1,032,803.72 and 426,118 is: 588,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,407.76 : 1,032,803.72 = 426,118 : x
  2. Step 2: Convert to fraction form
    748,407.76/1,032,803.72 = 426,118/x
  3. Step 3: Cross multiply
    748,407.76x = 1,032,803.72 × 426,118
  4. Step 4: Simplify right side
    748,407.76x = 440,096,255,558.96
  5. Step 5: Solve for x
    x = 440,096,255,558.96/748,407.76
  6. Step 6: Final answer
    x = 588,043.42

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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.