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Finding the Fourth Proportional to 623,833.92, 861,111.41 and 369,184.50

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Solution

The fourth proportional to 623,833.92, 861,111.41 and 369,184.50 is: 509,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,833.92 : 861,111.41 = 369,184.50 : x
  2. Step 2: Convert to fraction form
    623,833.92/861,111.41 = 369,184.50/x
  3. Step 3: Cross multiply
    623,833.92x = 861,111.41 × 369,184.50
  4. Step 4: Simplify right side
    623,833.92x = 317,908,983,499.22
  5. Step 5: Solve for x
    x = 317,908,983,499.22/623,833.92
  6. Step 6: Final answer
    x = 509,605.16

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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.