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Finding the Fourth Proportional to 477,817.54, 716,670.87 and 178,308.58

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Solution

The fourth proportional to 477,817.54, 716,670.87 and 178,308.58 is: 267,442.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,817.54 : 716,670.87 = 178,308.58 : x
  2. Step 2: Convert to fraction form
    477,817.54/716,670.87 = 178,308.58/x
  3. Step 3: Cross multiply
    477,817.54x = 716,670.87 × 178,308.58
  4. Step 4: Simplify right side
    477,817.54x = 127,788,565,157.07
  5. Step 5: Solve for x
    x = 127,788,565,157.07/477,817.54
  6. Step 6: Final answer
    x = 267,442.18

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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.