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Finding the Fourth Proportional to 1,885,834.86, 2,602,451.95 and 1,026,401.28

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Solution

The fourth proportional to 1,885,834.86, 2,602,451.95 and 1,026,401.28 is: 1,416,433.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885,834.86 : 2,602,451.95 = 1,026,401.28 : x
  2. Step 2: Convert to fraction form
    1,885,834.86/2,602,451.95 = 1,026,401.28/x
  3. Step 3: Cross multiply
    1,885,834.86x = 2,602,451.95 × 1,026,401.28
  4. Step 4: Simplify right side
    1,885,834.86x = 2,671,160,012,618.50
  5. Step 5: Solve for x
    x = 2,671,160,012,618.50/1,885,834.86
  6. Step 6: Final answer
    x = 1,416,433.68

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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.