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Finding the Fourth Proportional to 572,974.40, 859,634.40 and 306,862.40

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Solution

The fourth proportional to 572,974.40, 859,634.40 and 306,862.40 is: 460,386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,974.40 : 859,634.40 = 306,862.40 : x
  2. Step 2: Convert to fraction form
    572,974.40/859,634.40 = 306,862.40/x
  3. Step 3: Cross multiply
    572,974.40x = 859,634.40 × 306,862.40
  4. Step 4: Simplify right side
    572,974.40x = 263,789,475,106.56
  5. Step 5: Solve for x
    x = 263,789,475,106.56/572,974.40
  6. Step 6: Final answer
    x = 460,386.14

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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.