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Finding the Fourth Proportional to 430,916.40, 646,374.60 and 244,292.40

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Solution

The fourth proportional to 430,916.40, 646,374.60 and 244,292.40 is: 366,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,916.40 : 646,374.60 = 244,292.40 : x
  2. Step 2: Convert to fraction form
    430,916.40/646,374.60 = 244,292.40/x
  3. Step 3: Cross multiply
    430,916.40x = 646,374.60 × 244,292.40
  4. Step 4: Simplify right side
    430,916.40x = 157,904,402,333.04
  5. Step 5: Solve for x
    x = 157,904,402,333.04/430,916.40
  6. Step 6: Final answer
    x = 366,438.60

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Similar ratio
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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.