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Finding the Fourth Proportional to 575,542.40, 863,313.60 and 540,521.60

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Solution

The fourth proportional to 575,542.40, 863,313.60 and 540,521.60 is: 810,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,542.40 : 863,313.60 = 540,521.60 : x
  2. Step 2: Convert to fraction form
    575,542.40/863,313.60 = 540,521.60/x
  3. Step 3: Cross multiply
    575,542.40x = 863,313.60 × 540,521.60
  4. Step 4: Simplify right side
    575,542.40x = 466,639,648,373.76
  5. Step 5: Solve for x
    x = 466,639,648,373.76/575,542.40
  6. Step 6: Final answer
    x = 810,782.40

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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.