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Finding the Fourth Proportional to 492,430.32, 679,544.32 and 277,566.24

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Solution

The fourth proportional to 492,430.32, 679,544.32 and 277,566.24 is: 383,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,430.32 : 679,544.32 = 277,566.24 : x
  2. Step 2: Convert to fraction form
    492,430.32/679,544.32 = 277,566.24/x
  3. Step 3: Cross multiply
    492,430.32x = 679,544.32 × 277,566.24
  4. Step 4: Simplify right side
    492,430.32x = 188,618,561,815.76
  5. Step 5: Solve for x
    x = 188,618,561,815.76/492,430.32
  6. Step 6: Final answer
    x = 383,036.04

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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.