Home / 668,928.18-923,121.54-382,454.28

Finding the Fourth Proportional to 668,928.18, 923,121.54 and 382,454.28

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Solution

The fourth proportional to 668,928.18, 923,121.54 and 382,454.28 is: 527,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,928.18 : 923,121.54 = 382,454.28 : x
  2. Step 2: Convert to fraction form
    668,928.18/923,121.54 = 382,454.28/x
  3. Step 3: Cross multiply
    668,928.18x = 923,121.54 × 382,454.28
  4. Step 4: Simplify right side
    668,928.18x = 353,051,783,933.19
  5. Step 5: Solve for x
    x = 353,051,783,933.19/668,928.18
  6. Step 6: Final answer
    x = 527,787.28

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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.