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Finding the Fourth Proportional to 633,427.02, 873,798.03 and 391,632.30

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Solution

The fourth proportional to 633,427.02, 873,798.03 and 391,632.30 is: 540,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,427.02 : 873,798.03 = 391,632.30 : x
  2. Step 2: Convert to fraction form
    633,427.02/873,798.03 = 391,632.30/x
  3. Step 3: Cross multiply
    633,427.02x = 873,798.03 × 391,632.30
  4. Step 4: Simplify right side
    633,427.02x = 342,207,532,224.37
  5. Step 5: Solve for x
    x = 342,207,532,224.37/633,427.02
  6. Step 6: Final answer
    x = 540,247.77

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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.