Home / 862,186.95-1,292,282.57-407,066.78

Finding the Fourth Proportional to 862,186.95, 1,292,282.57 and 407,066.78

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Solution

The fourth proportional to 862,186.95, 1,292,282.57 and 407,066.78 is: 610,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,186.95 : 1,292,282.57 = 407,066.78 : x
  2. Step 2: Convert to fraction form
    862,186.95/1,292,282.57 = 407,066.78/x
  3. Step 3: Cross multiply
    862,186.95x = 1,292,282.57 × 407,066.78
  4. Step 4: Simplify right side
    862,186.95x = 526,045,308,868.40
  5. Step 5: Solve for x
    x = 526,045,308,868.40/862,186.95
  6. Step 6: Final answer
    x = 610,129.05

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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.