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Finding the Fourth Proportional to 358,579.80, 537,869.70 and 342,833.40

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Solution

The fourth proportional to 358,579.80, 537,869.70 and 342,833.40 is: 514,250.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,579.80 : 537,869.70 = 342,833.40 : x
  2. Step 2: Convert to fraction form
    358,579.80/537,869.70 = 342,833.40/x
  3. Step 3: Cross multiply
    358,579.80x = 537,869.70 × 342,833.40
  4. Step 4: Simplify right side
    358,579.80x = 184,399,698,007.98
  5. Step 5: Solve for x
    x = 184,399,698,007.98/358,579.80
  6. Step 6: Final answer
    x = 514,250.10

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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.