Home / 912,015.60-1,368,023.40-406,575.60

Finding the Fourth Proportional to 912,015.60, 1,368,023.40 and 406,575.60

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Solution

The fourth proportional to 912,015.60, 1,368,023.40 and 406,575.60 is: 609,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,015.60 : 1,368,023.40 = 406,575.60 : x
  2. Step 2: Convert to fraction form
    912,015.60/1,368,023.40 = 406,575.60/x
  3. Step 3: Cross multiply
    912,015.60x = 1,368,023.40 × 406,575.60
  4. Step 4: Simplify right side
    912,015.60x = 556,204,934,669.04
  5. Step 5: Solve for x
    x = 556,204,934,669.04/912,015.60
  6. Step 6: Final answer
    x = 609,863.40

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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.