Home / 665,205.40-997,808.10-166,569.40

Finding the Fourth Proportional to 665,205.40, 997,808.10 and 166,569.40

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Solution

The fourth proportional to 665,205.40, 997,808.10 and 166,569.40 is: 249,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,205.40 : 997,808.10 = 166,569.40 : x
  2. Step 2: Convert to fraction form
    665,205.40/997,808.10 = 166,569.40/x
  3. Step 3: Cross multiply
    665,205.40x = 997,808.10 × 166,569.40
  4. Step 4: Simplify right side
    665,205.40x = 166,204,296,532.14
  5. Step 5: Solve for x
    x = 166,204,296,532.14/665,205.40
  6. Step 6: Final answer
    x = 249,854.10

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Double scale
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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.