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Finding the Fourth Proportional to 549,929.34, 758,901.47 and 308,211.84

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Solution

The fourth proportional to 549,929.34, 758,901.47 and 308,211.84 is: 425,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,929.34 : 758,901.47 = 308,211.84 : x
  2. Step 2: Convert to fraction form
    549,929.34/758,901.47 = 308,211.84/x
  3. Step 3: Cross multiply
    549,929.34x = 758,901.47 × 308,211.84
  4. Step 4: Simplify right side
    549,929.34x = 233,902,416,906.35
  5. Step 5: Solve for x
    x = 233,902,416,906.35/549,929.34
  6. Step 6: Final answer
    x = 425,331.77

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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.