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Finding the Fourth Proportional to 539,143.34, 744,015.69 and 297,440.96

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Solution

The fourth proportional to 539,143.34, 744,015.69 and 297,440.96 is: 410,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,143.34 : 744,015.69 = 297,440.96 : x
  2. Step 2: Convert to fraction form
    539,143.34/744,015.69 = 297,440.96/x
  3. Step 3: Cross multiply
    539,143.34x = 744,015.69 × 297,440.96
  4. Step 4: Simplify right side
    539,143.34x = 221,300,737,368.58
  5. Step 5: Solve for x
    x = 221,300,737,368.58/539,143.34
  6. Step 6: Final answer
    x = 410,467.35

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1.5x scale

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.