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Finding the Fourth Proportional to 1,888,846.16, 2,606,531.81 and 1,029,387.96

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Solution

The fourth proportional to 1,888,846.16, 2,606,531.81 and 1,029,387.96 is: 1,420,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,846.16 : 2,606,531.81 = 1,029,387.96 : x
  2. Step 2: Convert to fraction form
    1,888,846.16/2,606,531.81 = 1,029,387.96/x
  3. Step 3: Cross multiply
    1,888,846.16x = 2,606,531.81 × 1,029,387.96
  4. Step 4: Simplify right side
    1,888,846.16x = 2,683,132,457,424.07
  5. Step 5: Solve for x
    x = 2,683,132,457,424.07/1,888,846.16
  6. Step 6: Final answer
    x = 1,420,514.03

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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.