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Finding the Fourth Proportional to 615,404.40, 847,998.36 and 454,004.40

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Solution

The fourth proportional to 615,404.40, 847,998.36 and 454,004.40 is: 625,596.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,404.40 : 847,998.36 = 454,004.40 : x
  2. Step 2: Convert to fraction form
    615,404.40/847,998.36 = 454,004.40/x
  3. Step 3: Cross multiply
    615,404.40x = 847,998.36 × 454,004.40
  4. Step 4: Simplify right side
    615,404.40x = 384,994,986,632.78
  5. Step 5: Solve for x
    x = 384,994,986,632.78/615,404.40
  6. Step 6: Final answer
    x = 625,596.74

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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.