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Finding the Fourth Proportional to 1,756,416.72, 2,423,793 and 992,453.88

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Solution

The fourth proportional to 1,756,416.72, 2,423,793 and 992,453.88 is: 1,369,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756,416.72 : 2,423,793 = 992,453.88 : x
  2. Step 2: Convert to fraction form
    1,756,416.72/2,423,793 = 992,453.88/x
  3. Step 3: Cross multiply
    1,756,416.72x = 2,423,793 × 992,453.88
  4. Step 4: Simplify right side
    1,756,416.72x = 2,405,502,767,166.84
  5. Step 5: Solve for x
    x = 2,405,502,767,166.84/1,756,416.72
  6. Step 6: Final answer
    x = 1,369,551.28

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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.