Home / 434,545.40-651,623.70-197,766.20

Finding the Fourth Proportional to 434,545.40, 651,623.70 and 197,766.20

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Solution

The fourth proportional to 434,545.40, 651,623.70 and 197,766.20 is: 296,560.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,545.40 : 651,623.70 = 197,766.20 : x
  2. Step 2: Convert to fraction form
    434,545.40/651,623.70 = 197,766.20/x
  3. Step 3: Cross multiply
    434,545.40x = 651,623.70 × 197,766.20
  4. Step 4: Simplify right side
    434,545.40x = 128,869,142,978.94
  5. Step 5: Solve for x
    x = 128,869,142,978.94/434,545.40
  6. Step 6: Final answer
    x = 296,560.83

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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.