Home / 821,785.38-1,134,058.28-459,210.14

Finding the Fourth Proportional to 821,785.38, 1,134,058.28 and 459,210.14

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Solution

The fourth proportional to 821,785.38, 1,134,058.28 and 459,210.14 is: 633,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,785.38 : 1,134,058.28 = 459,210.14 : x
  2. Step 2: Convert to fraction form
    821,785.38/1,134,058.28 = 459,210.14/x
  3. Step 3: Cross multiply
    821,785.38x = 1,134,058.28 × 459,210.14
  4. Step 4: Simplify right side
    821,785.38x = 520,771,061,526.96
  5. Step 5: Solve for x
    x = 520,771,061,526.96/821,785.38
  6. Step 6: Final answer
    x = 633,706.90

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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.