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Finding the Fourth Proportional to 1,385,955, 1,912,617.90 and 750,051

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Solution

The fourth proportional to 1,385,955, 1,912,617.90 and 750,051 is: 1,035,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,955 : 1,912,617.90 = 750,051 : x
  2. Step 2: Convert to fraction form
    1,385,955/1,912,617.90 = 750,051/x
  3. Step 3: Cross multiply
    1,385,955x = 1,912,617.90 × 750,051
  4. Step 4: Simplify right side
    1,385,955x = 1,434,560,968,512.90
  5. Step 5: Solve for x
    x = 1,434,560,968,512.90/1,385,955
  6. Step 6: Final answer
    x = 1,035,070.38

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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.