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Finding the Fourth Proportional to 366,931.20, 549,740.70 and 310,506.60

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Solution

The fourth proportional to 366,931.20, 549,740.70 and 310,506.60 is: 465,204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,931.20 : 549,740.70 = 310,506.60 : x
  2. Step 2: Convert to fraction form
    366,931.20/549,740.70 = 310,506.60/x
  3. Step 3: Cross multiply
    366,931.20x = 549,740.70 × 310,506.60
  4. Step 4: Simplify right side
    366,931.20x = 170,698,115,638.62
  5. Step 5: Solve for x
    x = 170,698,115,638.62/366,931.20
  6. Step 6: Final answer
    x = 465,204.69

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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.