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Finding the Fourth Proportional to 364,807.80, 547,211.70 and 98,609.40

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Solution

The fourth proportional to 364,807.80, 547,211.70 and 98,609.40 is: 147,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,807.80 : 547,211.70 = 98,609.40 : x
  2. Step 2: Convert to fraction form
    364,807.80/547,211.70 = 98,609.40/x
  3. Step 3: Cross multiply
    364,807.80x = 547,211.70 × 98,609.40
  4. Step 4: Simplify right side
    364,807.80x = 53,960,217,409.98
  5. Step 5: Solve for x
    x = 53,960,217,409.98/364,807.80
  6. Step 6: Final answer
    x = 147,914.10

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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.