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Finding the Fourth Proportional to 607,935.40, 910,520.70 and 383,986.60

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Solution

The fourth proportional to 607,935.40, 910,520.70 and 383,986.60 is: 575,106.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,935.40 : 910,520.70 = 383,986.60 : x
  2. Step 2: Convert to fraction form
    607,935.40/910,520.70 = 383,986.60/x
  3. Step 3: Cross multiply
    607,935.40x = 910,520.70 × 383,986.60
  4. Step 4: Simplify right side
    607,935.40x = 349,627,747,822.62
  5. Step 5: Solve for x
    x = 349,627,747,822.62/607,935.40
  6. Step 6: Final answer
    x = 575,106.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.