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Finding the Fourth Proportional to 456,564.40, 684,846.60 and 207,246.40

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Solution

The fourth proportional to 456,564.40, 684,846.60 and 207,246.40 is: 310,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,564.40 : 684,846.60 = 207,246.40 : x
  2. Step 2: Convert to fraction form
    456,564.40/684,846.60 = 207,246.40/x
  3. Step 3: Cross multiply
    456,564.40x = 684,846.60 × 207,246.40
  4. Step 4: Simplify right side
    456,564.40x = 141,931,992,402.24
  5. Step 5: Solve for x
    x = 141,931,992,402.24/456,564.40
  6. Step 6: Final answer
    x = 310,869.60

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Similar ratio
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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.