Home / 628,968.60-867,953.16-384,362.37

Finding the Fourth Proportional to 628,968.60, 867,953.16 and 384,362.37

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Solution

The fourth proportional to 628,968.60, 867,953.16 and 384,362.37 is: 530,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,968.60 : 867,953.16 = 384,362.37 : x
  2. Step 2: Convert to fraction form
    628,968.60/867,953.16 = 384,362.37/x
  3. Step 3: Cross multiply
    628,968.60x = 867,953.16 × 384,362.37
  4. Step 4: Simplify right side
    628,968.60x = 333,608,533,626.59
  5. Step 5: Solve for x
    x = 333,608,533,626.59/628,968.60
  6. Step 6: Final answer
    x = 530,405.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.