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Finding the Fourth Proportional to 705,510.68, 973,609.72 and 383,220.70

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Solution

The fourth proportional to 705,510.68, 973,609.72 and 383,220.70 is: 528,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,510.68 : 973,609.72 = 383,220.70 : x
  2. Step 2: Convert to fraction form
    705,510.68/973,609.72 = 383,220.70/x
  3. Step 3: Cross multiply
    705,510.68x = 973,609.72 × 383,220.70
  4. Step 4: Simplify right side
    705,510.68x = 373,107,395,033.13
  5. Step 5: Solve for x
    x = 373,107,395,033.13/705,510.68
  6. Step 6: Final answer
    x = 528,847.27

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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.