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Finding the Fourth Proportional to 644,096.32, 888,880.70 and 357,616.40

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Solution

The fourth proportional to 644,096.32, 888,880.70 and 357,616.40 is: 493,526.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,096.32 : 888,880.70 = 357,616.40 : x
  2. Step 2: Convert to fraction form
    644,096.32/888,880.70 = 357,616.40/x
  3. Step 3: Cross multiply
    644,096.32x = 888,880.70 × 357,616.40
  4. Step 4: Simplify right side
    644,096.32x = 317,878,315,963.48
  5. Step 5: Solve for x
    x = 317,878,315,963.48/644,096.32
  6. Step 6: Final answer
    x = 493,526.06

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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.