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Finding the Fourth Proportional to 298,336.10, 447,459.71 and 98,657.54

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Solution

The fourth proportional to 298,336.10, 447,459.71 and 98,657.54 is: 147,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,336.10 : 447,459.71 = 98,657.54 : x
  2. Step 2: Convert to fraction form
    298,336.10/447,459.71 = 98,657.54/x
  3. Step 3: Cross multiply
    298,336.10x = 447,459.71 × 98,657.54
  4. Step 4: Simplify right side
    298,336.10x = 44,145,271,507.13
  5. Step 5: Solve for x
    x = 44,145,271,507.13/298,336.10
  6. Step 6: Final answer
    x = 147,971.60

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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.