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Finding the Fourth Proportional to 1,328,809.22, 1,834,323.53 and 893,478.90

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Solution

The fourth proportional to 1,328,809.22, 1,834,323.53 and 893,478.90 is: 1,233,381.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,809.22 : 1,834,323.53 = 893,478.90 : x
  2. Step 2: Convert to fraction form
    1,328,809.22/1,834,323.53 = 893,478.90/x
  3. Step 3: Cross multiply
    1,328,809.22x = 1,834,323.53 × 893,478.90
  4. Step 4: Simplify right side
    1,328,809.22x = 1,638,929,363,045.05
  5. Step 5: Solve for x
    x = 1,638,929,363,045.05/1,328,809.22
  6. Step 6: Final answer
    x = 1,233,381.99

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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.