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Finding the Fourth Proportional to 705,584.16, 973,713.06 and 383,296.86

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Solution

The fourth proportional to 705,584.16, 973,713.06 and 383,296.86 is: 528,953.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,584.16 : 973,713.06 = 383,296.86 : x
  2. Step 2: Convert to fraction form
    705,584.16/973,713.06 = 383,296.86/x
  3. Step 3: Cross multiply
    705,584.16x = 973,713.06 × 383,296.86
  4. Step 4: Simplify right side
    705,584.16x = 373,221,158,438.99
  5. Step 5: Solve for x
    x = 373,221,158,438.99/705,584.16
  6. Step 6: Final answer
    x = 528,953.43

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Double scale
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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.