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Finding the Fourth Proportional to 1,385,973, 1,912,642.86 and 750,069

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Solution

The fourth proportional to 1,385,973, 1,912,642.86 and 750,069 is: 1,035,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,973 : 1,912,642.86 = 750,069 : x
  2. Step 2: Convert to fraction form
    1,385,973/1,912,642.86 = 750,069/x
  3. Step 3: Cross multiply
    1,385,973x = 1,912,642.86 × 750,069
  4. Step 4: Simplify right side
    1,385,973x = 1,434,614,117,357.34
  5. Step 5: Solve for x
    x = 1,434,614,117,357.34/1,385,973
  6. Step 6: Final answer
    x = 1,035,095.28

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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.