Home / 836,420.84-1,154,265.55-454,450.76

Finding the Fourth Proportional to 836,420.84, 1,154,265.55 and 454,450.76

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Solution

The fourth proportional to 836,420.84, 1,154,265.55 and 454,450.76 is: 627,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,420.84 : 1,154,265.55 = 454,450.76 : x
  2. Step 2: Convert to fraction form
    836,420.84/1,154,265.55 = 454,450.76/x
  3. Step 3: Cross multiply
    836,420.84x = 1,154,265.55 × 454,450.76
  4. Step 4: Simplify right side
    836,420.84x = 524,556,849,531.86
  5. Step 5: Solve for x
    x = 524,556,849,531.86/836,420.84
  6. Step 6: Final answer
    x = 627,144.65

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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.