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Finding the Fourth Proportional to 705,521.70, 973,638.06 and 383,250.24

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Solution

The fourth proportional to 705,521.70, 973,638.06 and 383,250.24 is: 528,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,521.70 : 973,638.06 = 383,250.24 : x
  2. Step 2: Convert to fraction form
    705,521.70/973,638.06 = 383,250.24/x
  3. Step 3: Cross multiply
    705,521.70x = 973,638.06 × 383,250.24
  4. Step 4: Simplify right side
    705,521.70x = 373,147,018,251.88
  5. Step 5: Solve for x
    x = 373,147,018,251.88/705,521.70
  6. Step 6: Final answer
    x = 528,895.17

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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.