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Finding the Fourth Proportional to 357,108.99, 492,809.02 and 195,966.78

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Solution

The fourth proportional to 357,108.99, 492,809.02 and 195,966.78 is: 270,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,108.99 : 492,809.02 = 195,966.78 : x
  2. Step 2: Convert to fraction form
    357,108.99/492,809.02 = 195,966.78/x
  3. Step 3: Cross multiply
    357,108.99x = 492,809.02 × 195,966.78
  4. Step 4: Simplify right side
    357,108.99x = 96,574,196,804.36
  5. Step 5: Solve for x
    x = 96,574,196,804.36/357,108.99
  6. Step 6: Final answer
    x = 270,433.40

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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.