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Finding the Fourth Proportional to 530,340, 795,509.99 and 436,648.92

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Solution

The fourth proportional to 530,340, 795,509.99 and 436,648.92 is: 654,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,340 : 795,509.99 = 436,648.92 : x
  2. Step 2: Convert to fraction form
    530,340/795,509.99 = 436,648.92/x
  3. Step 3: Cross multiply
    530,340x = 795,509.99 × 436,648.92
  4. Step 4: Simplify right side
    530,340x = 347,358,577,982.71
  5. Step 5: Solve for x
    x = 347,358,577,982.71/530,340
  6. Step 6: Final answer
    x = 654,973.37

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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.