Home / 626,741.40-940,112.10-477,442.20

Finding the Fourth Proportional to 626,741.40, 940,112.10 and 477,442.20

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Solution

The fourth proportional to 626,741.40, 940,112.10 and 477,442.20 is: 716,163.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,741.40 : 940,112.10 = 477,442.20 : x
  2. Step 2: Convert to fraction form
    626,741.40/940,112.10 = 477,442.20/x
  3. Step 3: Cross multiply
    626,741.40x = 940,112.10 × 477,442.20
  4. Step 4: Simplify right side
    626,741.40x = 448,849,189,270.62
  5. Step 5: Solve for x
    x = 448,849,189,270.62/626,741.40
  6. Step 6: Final answer
    x = 716,163.30

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Half scale
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Double scale
Find fourth proportional to 626,742.40, 940,113.60 and 477,443.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.