Home / 765,803.79-1,056,908.31-439,244.19

Finding the Fourth Proportional to 765,803.79, 1,056,908.31 and 439,244.19

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Solution

The fourth proportional to 765,803.79, 1,056,908.31 and 439,244.19 is: 606,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,803.79 : 1,056,908.31 = 439,244.19 : x
  2. Step 2: Convert to fraction form
    765,803.79/1,056,908.31 = 439,244.19/x
  3. Step 3: Cross multiply
    765,803.79x = 1,056,908.31 × 439,244.19
  4. Step 4: Simplify right side
    765,803.79x = 464,240,834,530.22
  5. Step 5: Solve for x
    x = 464,240,834,530.22/765,803.79
  6. Step 6: Final answer
    x = 606,213.81

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Double scale
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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.