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Finding the Fourth Proportional to 459,765.44, 634,472.16 and 258,562.88

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Solution

The fourth proportional to 459,765.44, 634,472.16 and 258,562.88 is: 356,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,765.44 : 634,472.16 = 258,562.88 : x
  2. Step 2: Convert to fraction form
    459,765.44/634,472.16 = 258,562.88/x
  3. Step 3: Cross multiply
    459,765.44x = 634,472.16 × 258,562.88
  4. Step 4: Simplify right side
    459,765.44x = 164,050,948,969.42
  5. Step 5: Solve for x
    x = 164,050,948,969.42/459,765.44
  6. Step 6: Final answer
    x = 356,814.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.