Home / 1,113,211.70-1,668,778.74-439,298.60

Finding the Fourth Proportional to 1,113,211.70, 1,668,778.74 and 439,298.60

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Solution

The fourth proportional to 1,113,211.70, 1,668,778.74 and 439,298.60 is: 658,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,211.70 : 1,668,778.74 = 439,298.60 : x
  2. Step 2: Convert to fraction form
    1,113,211.70/1,668,778.74 = 439,298.60/x
  3. Step 3: Cross multiply
    1,113,211.70x = 1,668,778.74 × 439,298.60
  4. Step 4: Simplify right side
    1,113,211.70x = 733,092,164,191.76
  5. Step 5: Solve for x
    x = 733,092,164,191.76/1,113,211.70
  6. Step 6: Final answer
    x = 658,537.96

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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.