Home / 638,573.37-956,776.12-385,321.71

Finding the Fourth Proportional to 638,573.37, 956,776.12 and 385,321.71

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Solution

The fourth proportional to 638,573.37, 956,776.12 and 385,321.71 is: 577,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,573.37 : 956,776.12 = 385,321.71 : x
  2. Step 2: Convert to fraction form
    638,573.37/956,776.12 = 385,321.71/x
  3. Step 3: Cross multiply
    638,573.37x = 956,776.12 × 385,321.71
  4. Step 4: Simplify right side
    638,573.37x = 368,666,605,861.69
  5. Step 5: Solve for x
    x = 368,666,605,861.69/638,573.37
  6. Step 6: Final answer
    x = 577,328.50

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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.