Home / 626,680,750.37-864,459,242.64-391,322,847.65

Finding the Fourth Proportional to 626,680,750.37, 864,459,242.64 and 391,322,847.65

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Solution

The fourth proportional to 626,680,750.37, 864,459,242.64 and 391,322,847.65 is: 539,800,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,680,750.37 : 864,459,242.64 = 391,322,847.65 : x
  2. Step 2: Convert to fraction form
    626,680,750.37/864,459,242.64 = 391,322,847.65/x
  3. Step 3: Cross multiply
    626,680,750.37x = 864,459,242.64 × 391,322,847.65
  4. Step 4: Simplify right side
    626,680,750.37x = 338,282,652,502,924,800
  5. Step 5: Solve for x
    x = 338,282,652,502,924,800/626,680,750.37
  6. Step 6: Final answer
    x = 539,800,611.88

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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.