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Finding the Fourth Proportional to 705,300.64, 973,311.84 and 383,008.08

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Solution

The fourth proportional to 705,300.64, 973,311.84 and 383,008.08 is: 528,549.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,300.64 : 973,311.84 = 383,008.08 : x
  2. Step 2: Convert to fraction form
    705,300.64/973,311.84 = 383,008.08/x
  3. Step 3: Cross multiply
    705,300.64x = 973,311.84 × 383,008.08
  4. Step 4: Simplify right side
    705,300.64x = 372,786,299,079.67
  5. Step 5: Solve for x
    x = 372,786,299,079.67/705,300.64
  6. Step 6: Final answer
    x = 528,549.50

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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.