Home / 943,145.81-1,301,541.43-513,425.83

Finding the Fourth Proportional to 943,145.81, 1,301,541.43 and 513,425.83

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Solution

The fourth proportional to 943,145.81, 1,301,541.43 and 513,425.83 is: 708,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,145.81 : 1,301,541.43 = 513,425.83 : x
  2. Step 2: Convert to fraction form
    943,145.81/1,301,541.43 = 513,425.83/x
  3. Step 3: Cross multiply
    943,145.81x = 1,301,541.43 × 513,425.83
  4. Step 4: Simplify right side
    943,145.81x = 668,244,983,156.15
  5. Step 5: Solve for x
    x = 668,244,983,156.15/943,145.81
  6. Step 6: Final answer
    x = 708,527.75

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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.