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Finding the Fourth Proportional to 664,393,345.56, 995,654,349.84 and 508,343,003.32

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Solution

The fourth proportional to 664,393,345.56, 995,654,349.84 and 508,343,003.32 is: 761,798,602.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,393,345.56 : 995,654,349.84 = 508,343,003.32 : x
  2. Step 2: Convert to fraction form
    664,393,345.56/995,654,349.84 = 508,343,003.32/x
  3. Step 3: Cross multiply
    664,393,345.56x = 995,654,349.84 × 508,343,003.32
  4. Step 4: Simplify right side
    664,393,345.56x = 506,133,922,466,287,552
  5. Step 5: Solve for x
    x = 506,133,922,466,287,552/664,393,345.56
  6. Step 6: Final answer
    x = 761,798,602.96

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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.