Home / 648,789.40-972,017.70-529,816.60

Finding the Fourth Proportional to 648,789.40, 972,017.70 and 529,816.60

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Solution

The fourth proportional to 648,789.40, 972,017.70 and 529,816.60 is: 793,772.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,789.40 : 972,017.70 = 529,816.60 : x
  2. Step 2: Convert to fraction form
    648,789.40/972,017.70 = 529,816.60/x
  3. Step 3: Cross multiply
    648,789.40x = 972,017.70 × 529,816.60
  4. Step 4: Simplify right side
    648,789.40x = 514,991,112,953.82
  5. Step 5: Solve for x
    x = 514,991,112,953.82/648,789.40
  6. Step 6: Final answer
    x = 793,772.39

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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.