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Finding the Fourth Proportional to 1,712,973.78, 2,363,981.22 and 949,027.32

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Solution

The fourth proportional to 1,712,973.78, 2,363,981.22 and 949,027.32 is: 1,309,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712,973.78 : 2,363,981.22 = 949,027.32 : x
  2. Step 2: Convert to fraction form
    1,712,973.78/2,363,981.22 = 949,027.32/x
  3. Step 3: Cross multiply
    1,712,973.78x = 2,363,981.22 × 949,027.32
  4. Step 4: Simplify right side
    1,712,973.78x = 2,243,482,761,746.93
  5. Step 5: Solve for x
    x = 2,243,482,761,746.93/1,712,973.78
  6. Step 6: Final answer
    x = 1,309,700.58

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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.