Home / 648,029.20-972,043.80-529,931.20

Finding the Fourth Proportional to 648,029.20, 972,043.80 and 529,931.20

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Solution

The fourth proportional to 648,029.20, 972,043.80 and 529,931.20 is: 794,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,029.20 : 972,043.80 = 529,931.20 : x
  2. Step 2: Convert to fraction form
    648,029.20/972,043.80 = 529,931.20/x
  3. Step 3: Cross multiply
    648,029.20x = 972,043.80 × 529,931.20
  4. Step 4: Simplify right side
    648,029.20x = 515,116,337,386.56
  5. Step 5: Solve for x
    x = 515,116,337,386.56/648,029.20
  6. Step 6: Final answer
    x = 794,896.80

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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.