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Finding the Fourth Proportional to 1,374,526.12, 1,896,940.76 and 770,953

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Solution

The fourth proportional to 1,374,526.12, 1,896,940.76 and 770,953 is: 1,063,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,526.12 : 1,896,940.76 = 770,953 : x
  2. Step 2: Convert to fraction form
    1,374,526.12/1,896,940.76 = 770,953/x
  3. Step 3: Cross multiply
    1,374,526.12x = 1,896,940.76 × 770,953
  4. Step 4: Simplify right side
    1,374,526.12x = 1,462,452,169,744.28
  5. Step 5: Solve for x
    x = 1,462,452,169,744.28/1,374,526.12
  6. Step 6: Final answer
    x = 1,063,968.26

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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.