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Finding the Fourth Proportional to 363,281.60, 544,922.40 and 318,958.40

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Solution

The fourth proportional to 363,281.60, 544,922.40 and 318,958.40 is: 478,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,281.60 : 544,922.40 = 318,958.40 : x
  2. Step 2: Convert to fraction form
    363,281.60/544,922.40 = 318,958.40/x
  3. Step 3: Cross multiply
    363,281.60x = 544,922.40 × 318,958.40
  4. Step 4: Simplify right side
    363,281.60x = 173,807,576,828.16
  5. Step 5: Solve for x
    x = 173,807,576,828.16/363,281.60
  6. Step 6: Final answer
    x = 478,437.60

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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.