Home / 819,014.37-1,130,936.49-513,602.25

Finding the Fourth Proportional to 819,014.37, 1,130,936.49 and 513,602.25

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Solution

The fourth proportional to 819,014.37, 1,130,936.49 and 513,602.25 is: 709,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,014.37 : 1,130,936.49 = 513,602.25 : x
  2. Step 2: Convert to fraction form
    819,014.37/1,130,936.49 = 513,602.25/x
  3. Step 3: Cross multiply
    819,014.37x = 1,130,936.49 × 513,602.25
  4. Step 4: Simplify right side
    819,014.37x = 580,851,525,871.10
  5. Step 5: Solve for x
    x = 580,851,525,871.10/819,014.37
  6. Step 6: Final answer
    x = 709,207.98

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Double scale
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Similar ratio
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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.