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Finding the Fourth Proportional to 488,595.80, 732,893.70 and 311,886.20

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Solution

The fourth proportional to 488,595.80, 732,893.70 and 311,886.20 is: 467,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,595.80 : 732,893.70 = 311,886.20 : x
  2. Step 2: Convert to fraction form
    488,595.80/732,893.70 = 311,886.20/x
  3. Step 3: Cross multiply
    488,595.80x = 732,893.70 × 311,886.20
  4. Step 4: Simplify right side
    488,595.80x = 228,579,431,096.94
  5. Step 5: Solve for x
    x = 228,579,431,096.94/488,595.80
  6. Step 6: Final answer
    x = 467,829.30

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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.