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Finding the Fourth Proportional to 556,981,086.08, 768,654,642.40 and 333,999,071.30

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Solution

The fourth proportional to 556,981,086.08, 768,654,642.40 and 333,999,071.30 is: 460,931,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,981,086.08 : 768,654,642.40 = 333,999,071.30 : x
  2. Step 2: Convert to fraction form
    556,981,086.08/768,654,642.40 = 333,999,071.30/x
  3. Step 3: Cross multiply
    556,981,086.08x = 768,654,642.40 × 333,999,071.30
  4. Step 4: Simplify right side
    556,981,086.08x = 256,729,936,707,355,360
  5. Step 5: Solve for x
    x = 256,729,936,707,355,360/556,981,086.08
  6. Step 6: Final answer
    x = 460,931,157.49

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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.