Home / 936,021.40-1,404,032.10-620,834.20

Finding the Fourth Proportional to 936,021.40, 1,404,032.10 and 620,834.20

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Solution

The fourth proportional to 936,021.40, 1,404,032.10 and 620,834.20 is: 931,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,021.40 : 1,404,032.10 = 620,834.20 : x
  2. Step 2: Convert to fraction form
    936,021.40/1,404,032.10 = 620,834.20/x
  3. Step 3: Cross multiply
    936,021.40x = 1,404,032.10 × 620,834.20
  4. Step 4: Simplify right side
    936,021.40x = 871,671,145,577.82
  5. Step 5: Solve for x
    x = 871,671,145,577.82/936,021.40
  6. Step 6: Final answer
    x = 931,251.30

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.