Home / 648,243.40-972,365.10-581,977.30

Finding the Fourth Proportional to 648,243.40, 972,365.10 and 581,977.30

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Solution

The fourth proportional to 648,243.40, 972,365.10 and 581,977.30 is: 872,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,243.40 : 972,365.10 = 581,977.30 : x
  2. Step 2: Convert to fraction form
    648,243.40/972,365.10 = 581,977.30/x
  3. Step 3: Cross multiply
    648,243.40x = 972,365.10 × 581,977.30
  4. Step 4: Simplify right side
    648,243.40x = 565,894,415,512.23
  5. Step 5: Solve for x
    x = 565,894,415,512.23/648,243.40
  6. Step 6: Final answer
    x = 872,965.95

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Double scale
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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.