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Finding the Fourth Proportional to 1,403,392, 1,936,727.04 and 767,488

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Solution

The fourth proportional to 1,403,392, 1,936,727.04 and 767,488 is: 1,059,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,392 : 1,936,727.04 = 767,488 : x
  2. Step 2: Convert to fraction form
    1,403,392/1,936,727.04 = 767,488/x
  3. Step 3: Cross multiply
    1,403,392x = 1,936,727.04 × 767,488
  4. Step 4: Simplify right side
    1,403,392x = 1,486,414,762,475.52
  5. Step 5: Solve for x
    x = 1,486,414,762,475.52/1,403,392
  6. Step 6: Final answer
    x = 1,059,158.64

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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.