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Finding the Fourth Proportional to 1,442,984.64, 2,163,384 and 874,248

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Solution

The fourth proportional to 1,442,984.64, 2,163,384 and 874,248 is: 1,310,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,984.64 : 2,163,384 = 874,248 : x
  2. Step 2: Convert to fraction form
    1,442,984.64/2,163,384 = 874,248/x
  3. Step 3: Cross multiply
    1,442,984.64x = 2,163,384 × 874,248
  4. Step 4: Simplify right side
    1,442,984.64x = 1,891,334,135,232
  5. Step 5: Solve for x
    x = 1,891,334,135,232/1,442,984.64
  6. Step 6: Final answer
    x = 1,310,709.82

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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.