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Finding the Fourth Proportional to 1,299,908.07, 1,949,468.40 and 353,155.77

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Solution

The fourth proportional to 1,299,908.07, 1,949,468.40 and 353,155.77 is: 529,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,908.07 : 1,949,468.40 = 353,155.77 : x
  2. Step 2: Convert to fraction form
    1,299,908.07/1,949,468.40 = 353,155.77/x
  3. Step 3: Cross multiply
    1,299,908.07x = 1,949,468.40 × 353,155.77
  4. Step 4: Simplify right side
    1,299,908.07x = 688,466,013,892.67
  5. Step 5: Solve for x
    x = 688,466,013,892.67/1,299,908.07
  6. Step 6: Final answer
    x = 529,626.69

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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.