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Finding the Fourth Proportional to 342,890.40, 514,335.60 and 93,572.40

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Solution

The fourth proportional to 342,890.40, 514,335.60 and 93,572.40 is: 140,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,890.40 : 514,335.60 = 93,572.40 : x
  2. Step 2: Convert to fraction form
    342,890.40/514,335.60 = 93,572.40/x
  3. Step 3: Cross multiply
    342,890.40x = 514,335.60 × 93,572.40
  4. Step 4: Simplify right side
    342,890.40x = 48,127,616,497.44
  5. Step 5: Solve for x
    x = 48,127,616,497.44/342,890.40
  6. Step 6: Final answer
    x = 140,358.60

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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.