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Finding the Fourth Proportional to 366,971.40, 550,457.10 and 157,019.40

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Solution

The fourth proportional to 366,971.40, 550,457.10 and 157,019.40 is: 235,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,971.40 : 550,457.10 = 157,019.40 : x
  2. Step 2: Convert to fraction form
    366,971.40/550,457.10 = 157,019.40/x
  3. Step 3: Cross multiply
    366,971.40x = 550,457.10 × 157,019.40
  4. Step 4: Simplify right side
    366,971.40x = 86,432,443,567.74
  5. Step 5: Solve for x
    x = 86,432,443,567.74/366,971.40
  6. Step 6: Final answer
    x = 235,529.10

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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.