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Finding the Fourth Proportional to 242,706.40, 364,059.60 and 217,045.60

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Solution

The fourth proportional to 242,706.40, 364,059.60 and 217,045.60 is: 325,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,706.40 : 364,059.60 = 217,045.60 : x
  2. Step 2: Convert to fraction form
    242,706.40/364,059.60 = 217,045.60/x
  3. Step 3: Cross multiply
    242,706.40x = 364,059.60 × 217,045.60
  4. Step 4: Simplify right side
    242,706.40x = 79,017,534,317.76
  5. Step 5: Solve for x
    x = 79,017,534,317.76/242,706.40
  6. Step 6: Final answer
    x = 325,568.40

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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.