Home / 665,211.40-997,817.10-166,575.40

Finding the Fourth Proportional to 665,211.40, 997,817.10 and 166,575.40

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Solution

The fourth proportional to 665,211.40, 997,817.10 and 166,575.40 is: 249,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,211.40 : 997,817.10 = 166,575.40 : x
  2. Step 2: Convert to fraction form
    665,211.40/997,817.10 = 166,575.40/x
  3. Step 3: Cross multiply
    665,211.40x = 997,817.10 × 166,575.40
  4. Step 4: Simplify right side
    665,211.40x = 166,211,782,559.34
  5. Step 5: Solve for x
    x = 166,211,782,559.34/665,211.40
  6. Step 6: Final answer
    x = 249,863.10

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Half scale
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Double scale
Find fourth proportional to 665,212.40, 997,818.60 and 166,576.40
Similar ratio
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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.