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Finding the Fourth Proportional to 358,588.80, 537,883.20 and 342,842.40

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Solution

The fourth proportional to 358,588.80, 537,883.20 and 342,842.40 is: 514,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,588.80 : 537,883.20 = 342,842.40 : x
  2. Step 2: Convert to fraction form
    358,588.80/537,883.20 = 342,842.40/x
  3. Step 3: Cross multiply
    358,588.80x = 537,883.20 × 342,842.40
  4. Step 4: Simplify right side
    358,588.80x = 184,409,167,207.68
  5. Step 5: Solve for x
    x = 184,409,167,207.68/358,588.80
  6. Step 6: Final answer
    x = 514,263.60

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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.