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Finding the Fourth Proportional to 1,411,636, 1,948,057.68 and 775,732

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Solution

The fourth proportional to 1,411,636, 1,948,057.68 and 775,732 is: 1,070,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,636 : 1,948,057.68 = 775,732 : x
  2. Step 2: Convert to fraction form
    1,411,636/1,948,057.68 = 775,732/x
  3. Step 3: Cross multiply
    1,411,636x = 1,948,057.68 × 775,732
  4. Step 4: Simplify right side
    1,411,636x = 1,511,170,680,221.76
  5. Step 5: Solve for x
    x = 1,511,170,680,221.76/1,411,636
  6. Step 6: Final answer
    x = 1,070,510.16

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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.