Home / 819,140.49-1,130,419.13-456,587.33

Finding the Fourth Proportional to 819,140.49, 1,130,419.13 and 456,587.33

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Solution

The fourth proportional to 819,140.49, 1,130,419.13 and 456,587.33 is: 630,093.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,140.49 : 1,130,419.13 = 456,587.33 : x
  2. Step 2: Convert to fraction form
    819,140.49/1,130,419.13 = 456,587.33/x
  3. Step 3: Cross multiply
    819,140.49x = 1,130,419.13 × 456,587.33
  4. Step 4: Simplify right side
    819,140.49x = 516,135,044,412.59
  5. Step 5: Solve for x
    x = 516,135,044,412.59/819,140.49
  6. Step 6: Final answer
    x = 630,093.43

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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.