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Finding the Fourth Proportional to 519,957.42, 779,419.44 and 361,853.72

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Solution

The fourth proportional to 519,957.42, 779,419.44 and 361,853.72 is: 542,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,957.42 : 779,419.44 = 361,853.72 : x
  2. Step 2: Convert to fraction form
    519,957.42/779,419.44 = 361,853.72/x
  3. Step 3: Cross multiply
    519,957.42x = 779,419.44 × 361,853.72
  4. Step 4: Simplify right side
    519,957.42x = 282,035,823,804.32
  5. Step 5: Solve for x
    x = 282,035,823,804.32/519,957.42
  6. Step 6: Final answer
    x = 542,421.00

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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.