Home / 812,319.62-1,217,756.10-385,592.18

Finding the Fourth Proportional to 812,319.62, 1,217,756.10 and 385,592.18

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Solution

The fourth proportional to 812,319.62, 1,217,756.10 and 385,592.18 is: 578,044.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,319.62 : 1,217,756.10 = 385,592.18 : x
  2. Step 2: Convert to fraction form
    812,319.62/1,217,756.10 = 385,592.18/x
  3. Step 3: Cross multiply
    812,319.62x = 1,217,756.10 × 385,592.18
  4. Step 4: Simplify right side
    812,319.62x = 469,557,229,307.30
  5. Step 5: Solve for x
    x = 469,557,229,307.30/812,319.62
  6. Step 6: Final answer
    x = 578,044.92

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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.