Home / 439,235.60-658,853.40-436,611.20

Finding the Fourth Proportional to 439,235.60, 658,853.40 and 436,611.20

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Solution

The fourth proportional to 439,235.60, 658,853.40 and 436,611.20 is: 654,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,235.60 : 658,853.40 = 436,611.20 : x
  2. Step 2: Convert to fraction form
    439,235.60/658,853.40 = 436,611.20/x
  3. Step 3: Cross multiply
    439,235.60x = 658,853.40 × 436,611.20
  4. Step 4: Simplify right side
    439,235.60x = 287,662,773,598.08
  5. Step 5: Solve for x
    x = 287,662,773,598.08/439,235.60
  6. Step 6: Final answer
    x = 654,916.80

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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.