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Finding the Fourth Proportional to 668,176.75, 922,071.87 and 377,783.30

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Solution

The fourth proportional to 668,176.75, 922,071.87 and 377,783.30 is: 521,334.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,176.75 : 922,071.87 = 377,783.30 : x
  2. Step 2: Convert to fraction form
    668,176.75/922,071.87 = 377,783.30/x
  3. Step 3: Cross multiply
    668,176.75x = 922,071.87 × 377,783.30
  4. Step 4: Simplify right side
    668,176.75x = 348,343,353,885.77
  5. Step 5: Solve for x
    x = 348,343,353,885.77/668,176.75
  6. Step 6: Final answer
    x = 521,334.14

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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.