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Finding the Fourth Proportional to 604,821.70, 907,232.55 and 415,864.90

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Solution

The fourth proportional to 604,821.70, 907,232.55 and 415,864.90 is: 623,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,821.70 : 907,232.55 = 415,864.90 : x
  2. Step 2: Convert to fraction form
    604,821.70/907,232.55 = 415,864.90/x
  3. Step 3: Cross multiply
    604,821.70x = 907,232.55 × 415,864.90
  4. Step 4: Simplify right side
    604,821.70x = 377,286,173,682.50
  5. Step 5: Solve for x
    x = 377,286,173,682.50/604,821.70
  6. Step 6: Final answer
    x = 623,797.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.