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Finding the Fourth Proportional to 549,326.67, 758,008.16 and 307,575.63

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Solution

The fourth proportional to 549,326.67, 758,008.16 and 307,575.63 is: 424,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,326.67 : 758,008.16 = 307,575.63 : x
  2. Step 2: Convert to fraction form
    549,326.67/758,008.16 = 307,575.63/x
  3. Step 3: Cross multiply
    549,326.67x = 758,008.16 × 307,575.63
  4. Step 4: Simplify right side
    549,326.67x = 233,144,835,819.26
  5. Step 5: Solve for x
    x = 233,144,835,819.26/549,326.67
  6. Step 6: Final answer
    x = 424,419.29

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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.