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Finding the Fourth Proportional to 584,702.66, 806,889.68 and 316,430.66

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Solution

The fourth proportional to 584,702.66, 806,889.68 and 316,430.66 is: 436,674.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,702.66 : 806,889.68 = 316,430.66 : x
  2. Step 2: Convert to fraction form
    584,702.66/806,889.68 = 316,430.66/x
  3. Step 3: Cross multiply
    584,702.66x = 806,889.68 × 316,430.66
  4. Step 4: Simplify right side
    584,702.66x = 255,324,633,989.59
  5. Step 5: Solve for x
    x = 255,324,633,989.59/584,702.66
  6. Step 6: Final answer
    x = 436,674.32

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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.