Home / 628,964.16-868,819.68-502,526.40

Finding the Fourth Proportional to 628,964.16, 868,819.68 and 502,526.40

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Solution

The fourth proportional to 628,964.16, 868,819.68 and 502,526.40 is: 694,164.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,964.16 : 868,819.68 = 502,526.40 : x
  2. Step 2: Convert to fraction form
    628,964.16/868,819.68 = 502,526.40/x
  3. Step 3: Cross multiply
    628,964.16x = 868,819.68 × 502,526.40
  4. Step 4: Simplify right side
    628,964.16x = 436,604,826,039.55
  5. Step 5: Solve for x
    x = 436,604,826,039.55/628,964.16
  6. Step 6: Final answer
    x = 694,164.87

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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.