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Finding the Fourth Proportional to 243,615.60, 365,423.40 and 240,116.40

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Solution

The fourth proportional to 243,615.60, 365,423.40 and 240,116.40 is: 360,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,615.60 : 365,423.40 = 240,116.40 : x
  2. Step 2: Convert to fraction form
    243,615.60/365,423.40 = 240,116.40/x
  3. Step 3: Cross multiply
    243,615.60x = 365,423.40 × 240,116.40
  4. Step 4: Simplify right side
    243,615.60x = 87,744,151,283.76
  5. Step 5: Solve for x
    x = 87,744,151,283.76/243,615.60
  6. Step 6: Final answer
    x = 360,174.60

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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.