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Finding the Fourth Proportional to 705,759.60, 973,931.40 and 383,462.40

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Solution

The fourth proportional to 705,759.60, 973,931.40 and 383,462.40 is: 529,168.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,759.60 : 973,931.40 = 383,462.40 : x
  2. Step 2: Convert to fraction form
    705,759.60/973,931.40 = 383,462.40/x
  3. Step 3: Cross multiply
    705,759.60x = 973,931.40 × 383,462.40
  4. Step 4: Simplify right side
    705,759.60x = 373,466,072,079.36
  5. Step 5: Solve for x
    x = 373,466,072,079.36/705,759.60
  6. Step 6: Final answer
    x = 529,168.96

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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.