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Finding the Fourth Proportional to 346,969.40, 520,065.30 and 178,424.60

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Solution

The fourth proportional to 346,969.40, 520,065.30 and 178,424.60 is: 267,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,969.40 : 520,065.30 = 178,424.60 : x
  2. Step 2: Convert to fraction form
    346,969.40/520,065.30 = 178,424.60/x
  3. Step 3: Cross multiply
    346,969.40x = 520,065.30 × 178,424.60
  4. Step 4: Simplify right side
    346,969.40x = 92,792,443,126.38
  5. Step 5: Solve for x
    x = 92,792,443,126.38/346,969.40
  6. Step 6: Final answer
    x = 267,436.96

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1.5x scale

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.