Home / 1,431,150-1,974,903.48-786,570.77

Finding the Fourth Proportional to 1,431,150, 1,974,903.48 and 786,570.77

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Solution

The fourth proportional to 1,431,150, 1,974,903.48 and 786,570.77 is: 1,085,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,150 : 1,974,903.48 = 786,570.77 : x
  2. Step 2: Convert to fraction form
    1,431,150/1,974,903.48 = 786,570.77/x
  3. Step 3: Cross multiply
    1,431,150x = 1,974,903.48 × 786,570.77
  4. Step 4: Simplify right side
    1,431,150x = 1,553,401,341,064.76
  5. Step 5: Solve for x
    x = 1,553,401,341,064.76/1,431,150
  6. Step 6: Final answer
    x = 1,085,421.75

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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.