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Finding the Fourth Proportional to 434,516.40, 651,774.60 and 245,559.60

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Solution

The fourth proportional to 434,516.40, 651,774.60 and 245,559.60 is: 368,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,516.40 : 651,774.60 = 245,559.60 : x
  2. Step 2: Convert to fraction form
    434,516.40/651,774.60 = 245,559.60/x
  3. Step 3: Cross multiply
    434,516.40x = 651,774.60 × 245,559.60
  4. Step 4: Simplify right side
    434,516.40x = 160,049,510,066.16
  5. Step 5: Solve for x
    x = 160,049,510,066.16/434,516.40
  6. Step 6: Final answer
    x = 368,339.40

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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.