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Finding the Fourth Proportional to 620,827.43, 931,044.32 and 265,746.11

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Solution

The fourth proportional to 620,827.43, 931,044.32 and 265,746.11 is: 398,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,827.43 : 931,044.32 = 265,746.11 : x
  2. Step 2: Convert to fraction form
    620,827.43/931,044.32 = 265,746.11/x
  3. Step 3: Cross multiply
    620,827.43x = 931,044.32 × 265,746.11
  4. Step 4: Simplify right side
    620,827.43x = 247,421,404,948.87
  5. Step 5: Solve for x
    x = 247,421,404,948.87/620,827.43
  6. Step 6: Final answer
    x = 398,534.91

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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.