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Finding the Fourth Proportional to 365,007.80, 547,511.70 and 98,809.40

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Solution

The fourth proportional to 365,007.80, 547,511.70 and 98,809.40 is: 148,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,007.80 : 547,511.70 = 98,809.40 : x
  2. Step 2: Convert to fraction form
    365,007.80/547,511.70 = 98,809.40/x
  3. Step 3: Cross multiply
    365,007.80x = 547,511.70 × 98,809.40
  4. Step 4: Simplify right side
    365,007.80x = 54,099,302,569.98
  5. Step 5: Solve for x
    x = 54,099,302,569.98/365,007.80
  6. Step 6: Final answer
    x = 148,214.10

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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.