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Finding the Fourth Proportional to 1,866,562, 2,575,855.56 and 1,018,690

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Solution

The fourth proportional to 1,866,562, 2,575,855.56 and 1,018,690 is: 1,405,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,562 : 2,575,855.56 = 1,018,690 : x
  2. Step 2: Convert to fraction form
    1,866,562/2,575,855.56 = 1,018,690/x
  3. Step 3: Cross multiply
    1,866,562x = 2,575,855.56 × 1,018,690
  4. Step 4: Simplify right side
    1,866,562x = 2,623,998,300,416.40
  5. Step 5: Solve for x
    x = 2,623,998,300,416.40/1,866,562
  6. Step 6: Final answer
    x = 1,405,792.20

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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.