Home / 585,038.20-877,557.30-512,721.40

Finding the Fourth Proportional to 585,038.20, 877,557.30 and 512,721.40

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Solution

The fourth proportional to 585,038.20, 877,557.30 and 512,721.40 is: 769,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,038.20 : 877,557.30 = 512,721.40 : x
  2. Step 2: Convert to fraction form
    585,038.20/877,557.30 = 512,721.40/x
  3. Step 3: Cross multiply
    585,038.20x = 877,557.30 × 512,721.40
  4. Step 4: Simplify right side
    585,038.20x = 449,942,407,436.22
  5. Step 5: Solve for x
    x = 449,942,407,436.22/585,038.20
  6. Step 6: Final answer
    x = 769,082.10

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Similar ratio
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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.