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Finding the Fourth Proportional to 1,590,849, 2,195,371.98 and 875,457

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Solution

The fourth proportional to 1,590,849, 2,195,371.98 and 875,457 is: 1,208,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,849 : 2,195,371.98 = 875,457 : x
  2. Step 2: Convert to fraction form
    1,590,849/2,195,371.98 = 875,457/x
  3. Step 3: Cross multiply
    1,590,849x = 2,195,371.98 × 875,457
  4. Step 4: Simplify right side
    1,590,849x = 1,921,953,767,494.86
  5. Step 5: Solve for x
    x = 1,921,953,767,494.86/1,590,849
  6. Step 6: Final answer
    x = 1,208,130.86

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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.