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Finding the Fourth Proportional to 365,520.80, 548,281.20 and 349,774.40

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Solution

The fourth proportional to 365,520.80, 548,281.20 and 349,774.40 is: 524,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,520.80 : 548,281.20 = 349,774.40 : x
  2. Step 2: Convert to fraction form
    365,520.80/548,281.20 = 349,774.40/x
  3. Step 3: Cross multiply
    365,520.80x = 548,281.20 × 349,774.40
  4. Step 4: Simplify right side
    365,520.80x = 191,774,727,761.28
  5. Step 5: Solve for x
    x = 191,774,727,761.28/365,520.80
  6. Step 6: Final answer
    x = 524,661.60

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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.