Home / 499,683.04-689,545.20-284,892.28

Finding the Fourth Proportional to 499,683.04, 689,545.20 and 284,892.28

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Solution

The fourth proportional to 499,683.04, 689,545.20 and 284,892.28 is: 393,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,683.04 : 689,545.20 = 284,892.28 : x
  2. Step 2: Convert to fraction form
    499,683.04/689,545.20 = 284,892.28/x
  3. Step 3: Cross multiply
    499,683.04x = 689,545.20 × 284,892.28
  4. Step 4: Simplify right side
    499,683.04x = 196,446,104,191.06
  5. Step 5: Solve for x
    x = 196,446,104,191.06/499,683.04
  6. Step 6: Final answer
    x = 393,141.43

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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.