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Finding the Fourth Proportional to 1,963,798.64, 2,708,363.48 and 1,352,926.32

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Solution

The fourth proportional to 1,963,798.64, 2,708,363.48 and 1,352,926.32 is: 1,865,881.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963,798.64 : 2,708,363.48 = 1,352,926.32 : x
  2. Step 2: Convert to fraction form
    1,963,798.64/2,708,363.48 = 1,352,926.32/x
  3. Step 3: Cross multiply
    1,963,798.64x = 2,708,363.48 × 1,352,926.32
  4. Step 4: Simplify right side
    1,963,798.64x = 3,664,216,236,218.79
  5. Step 5: Solve for x
    x = 3,664,216,236,218.79/1,963,798.64
  6. Step 6: Final answer
    x = 1,865,881.85

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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.