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Finding the Fourth Proportional to 549,049.58, 757,696.18 and 316,347.92

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Solution

The fourth proportional to 549,049.58, 757,696.18 and 316,347.92 is: 436,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,049.58 : 757,696.18 = 316,347.92 : x
  2. Step 2: Convert to fraction form
    549,049.58/757,696.18 = 316,347.92/x
  3. Step 3: Cross multiply
    549,049.58x = 757,696.18 × 316,347.92
  4. Step 4: Simplify right side
    549,049.58x = 239,695,610,534.95
  5. Step 5: Solve for x
    x = 239,695,610,534.95/549,049.58
  6. Step 6: Final answer
    x = 436,564.60

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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.