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Finding the Fourth Proportional to 365,798.40, 548,460.80 and 155,379.20

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Solution

The fourth proportional to 365,798.40, 548,460.80 and 155,379.20 is: 232,968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,798.40 : 548,460.80 = 155,379.20 : x
  2. Step 2: Convert to fraction form
    365,798.40/548,460.80 = 155,379.20/x
  3. Step 3: Cross multiply
    365,798.40x = 548,460.80 × 155,379.20
  4. Step 4: Simplify right side
    365,798.40x = 85,219,400,335.36
  5. Step 5: Solve for x
    x = 85,219,400,335.36/365,798.40
  6. Step 6: Final answer
    x = 232,968.22

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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.