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Finding the Fourth Proportional to 573,187.95, 790,165.67 and 400,569.98

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Solution

The fourth proportional to 573,187.95, 790,165.67 and 400,569.98 is: 552,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,187.95 : 790,165.67 = 400,569.98 : x
  2. Step 2: Convert to fraction form
    573,187.95/790,165.67 = 400,569.98/x
  3. Step 3: Cross multiply
    573,187.95x = 790,165.67 × 400,569.98
  4. Step 4: Simplify right side
    573,187.95x = 316,516,640,674.91
  5. Step 5: Solve for x
    x = 316,516,640,674.91/573,187.95
  6. Step 6: Final answer
    x = 552,203.93

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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.