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Finding the Fourth Proportional to 358,529.80, 537,794.70 and 342,783.40

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Solution

The fourth proportional to 358,529.80, 537,794.70 and 342,783.40 is: 514,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,529.80 : 537,794.70 = 342,783.40 : x
  2. Step 2: Convert to fraction form
    358,529.80/537,794.70 = 342,783.40/x
  3. Step 3: Cross multiply
    358,529.80x = 537,794.70 × 342,783.40
  4. Step 4: Simplify right side
    358,529.80x = 184,347,095,767.98
  5. Step 5: Solve for x
    x = 184,347,095,767.98/358,529.80
  6. Step 6: Final answer
    x = 514,175.10

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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.