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Finding the Fourth Proportional to 651,328.72, 898,883.51 and 409,818.31

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Solution

The fourth proportional to 651,328.72, 898,883.51 and 409,818.31 is: 565,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,328.72 : 898,883.51 = 409,818.31 : x
  2. Step 2: Convert to fraction form
    651,328.72/898,883.51 = 409,818.31/x
  3. Step 3: Cross multiply
    651,328.72x = 898,883.51 × 409,818.31
  4. Step 4: Simplify right side
    651,328.72x = 368,378,916,658.77
  5. Step 5: Solve for x
    x = 368,378,916,658.77/651,328.72
  6. Step 6: Final answer
    x = 565,580.65

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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.