Home / 456,827.60-683,297.40-409,782.80

Finding the Fourth Proportional to 456,827.60, 683,297.40 and 409,782.80

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Solution

The fourth proportional to 456,827.60, 683,297.40 and 409,782.80 is: 612,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,827.60 : 683,297.40 = 409,782.80 : x
  2. Step 2: Convert to fraction form
    456,827.60/683,297.40 = 409,782.80/x
  3. Step 3: Cross multiply
    456,827.60x = 683,297.40 × 409,782.80
  4. Step 4: Simplify right side
    456,827.60x = 280,003,521,804.72
  5. Step 5: Solve for x
    x = 280,003,521,804.72/456,827.60
  6. Step 6: Final answer
    x = 612,930.40

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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.