Home / 767,687.16-1,059,065.70-445,210.38

Finding the Fourth Proportional to 767,687.16, 1,059,065.70 and 445,210.38

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Solution

The fourth proportional to 767,687.16, 1,059,065.70 and 445,210.38 is: 614,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,687.16 : 1,059,065.70 = 445,210.38 : x
  2. Step 2: Convert to fraction form
    767,687.16/1,059,065.70 = 445,210.38/x
  3. Step 3: Cross multiply
    767,687.16x = 1,059,065.70 × 445,210.38
  4. Step 4: Simplify right side
    767,687.16x = 471,507,042,741.97
  5. Step 5: Solve for x
    x = 471,507,042,741.97/767,687.16
  6. Step 6: Final answer
    x = 614,191.65

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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.