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Finding the Fourth Proportional to 355,458.10, 532,312.35 and 236,485.30

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Solution

The fourth proportional to 355,458.10, 532,312.35 and 236,485.30 is: 354,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,458.10 : 532,312.35 = 236,485.30 : x
  2. Step 2: Convert to fraction form
    355,458.10/532,312.35 = 236,485.30/x
  3. Step 3: Cross multiply
    355,458.10x = 532,312.35 × 236,485.30
  4. Step 4: Simplify right side
    355,458.10x = 125,884,045,783.46
  5. Step 5: Solve for x
    x = 125,884,045,783.46/355,458.10
  6. Step 6: Final answer
    x = 354,145.95

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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.