Home / 668,928.95-923,122.58-382,455.03

Finding the Fourth Proportional to 668,928.95, 923,122.58 and 382,455.03

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Solution

The fourth proportional to 668,928.95, 923,122.58 and 382,455.03 is: 527,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,928.95 : 923,122.58 = 382,455.03 : x
  2. Step 2: Convert to fraction form
    668,928.95/923,122.58 = 382,455.03/x
  3. Step 3: Cross multiply
    668,928.95x = 923,122.58 × 382,455.03
  4. Step 4: Simplify right side
    668,928.95x = 353,052,875,577.01
  5. Step 5: Solve for x
    x = 353,052,875,577.01/668,928.95
  6. Step 6: Final answer
    x = 527,788.30

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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.