Home / 765,799.79-1,056,902.78-439,240.19

Finding the Fourth Proportional to 765,799.79, 1,056,902.78 and 439,240.19

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Solution

The fourth proportional to 765,799.79, 1,056,902.78 and 439,240.19 is: 606,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,799.79 : 1,056,902.78 = 439,240.19 : x
  2. Step 2: Convert to fraction form
    765,799.79/1,056,902.78 = 439,240.19/x
  3. Step 3: Cross multiply
    765,799.79x = 1,056,902.78 × 439,240.19
  4. Step 4: Simplify right side
    765,799.79x = 464,234,173,712.32
  5. Step 5: Solve for x
    x = 464,234,173,712.32/765,799.79
  6. Step 6: Final answer
    x = 606,208.28

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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.