Home / 1,189,038.78-1,783,559.40-557,953.20

Finding the Fourth Proportional to 1,189,038.78, 1,783,559.40 and 557,953.20

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Solution

The fourth proportional to 1,189,038.78, 1,783,559.40 and 557,953.20 is: 836,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,038.78 : 1,783,559.40 = 557,953.20 : x
  2. Step 2: Convert to fraction form
    1,189,038.78/1,783,559.40 = 557,953.20/x
  3. Step 3: Cross multiply
    1,189,038.78x = 1,783,559.40 × 557,953.20
  4. Step 4: Simplify right side
    1,189,038.78x = 995,142,674,620.08
  5. Step 5: Solve for x
    x = 995,142,674,620.08/1,189,038.78
  6. Step 6: Final answer
    x = 836,930.38

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Double scale
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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.