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Finding the Fourth Proportional to 458,322.38, 632,491.76 and 251,607.74

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Solution

The fourth proportional to 458,322.38, 632,491.76 and 251,607.74 is: 347,222.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,322.38 : 632,491.76 = 251,607.74 : x
  2. Step 2: Convert to fraction form
    458,322.38/632,491.76 = 251,607.74/x
  3. Step 3: Cross multiply
    458,322.38x = 632,491.76 × 251,607.74
  4. Step 4: Simplify right side
    458,322.38x = 159,139,822,302.22
  5. Step 5: Solve for x
    x = 159,139,822,302.22/458,322.38
  6. Step 6: Final answer
    x = 347,222.46

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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.