Home / 766,442.39-1,056,888.81-572,546.21

Finding the Fourth Proportional to 766,442.39, 1,056,888.81 and 572,546.21

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Solution

The fourth proportional to 766,442.39, 1,056,888.81 and 572,546.21 is: 789,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,442.39 : 1,056,888.81 = 572,546.21 : x
  2. Step 2: Convert to fraction form
    766,442.39/1,056,888.81 = 572,546.21/x
  3. Step 3: Cross multiply
    766,442.39x = 1,056,888.81 × 572,546.21
  4. Step 4: Simplify right side
    766,442.39x = 605,117,677,272.47
  5. Step 5: Solve for x
    x = 605,117,677,272.47/766,442.39
  6. Step 6: Final answer
    x = 789,514.89

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1.5x scale

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.