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Finding the Fourth Proportional to 369,712.80, 554,569.20 and 293,605.20

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Solution

The fourth proportional to 369,712.80, 554,569.20 and 293,605.20 is: 440,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,712.80 : 554,569.20 = 293,605.20 : x
  2. Step 2: Convert to fraction form
    369,712.80/554,569.20 = 293,605.20/x
  3. Step 3: Cross multiply
    369,712.80x = 554,569.20 × 293,605.20
  4. Step 4: Simplify right side
    369,712.80x = 162,824,400,879.84
  5. Step 5: Solve for x
    x = 162,824,400,879.84/369,712.80
  6. Step 6: Final answer
    x = 440,407.80

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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.