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Finding the Fourth Proportional to 346,658.80, 520,063.80 and 196,970.80

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Solution

The fourth proportional to 346,658.80, 520,063.80 and 196,970.80 is: 295,499.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,658.80 : 520,063.80 = 196,970.80 : x
  2. Step 2: Convert to fraction form
    346,658.80/520,063.80 = 196,970.80/x
  3. Step 3: Cross multiply
    346,658.80x = 520,063.80 × 196,970.80
  4. Step 4: Simplify right side
    346,658.80x = 102,437,382,737.04
  5. Step 5: Solve for x
    x = 102,437,382,737.04/346,658.80
  6. Step 6: Final answer
    x = 295,499.16

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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.