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Finding the Fourth Proportional to 668,919.65, 923,104.35 and 362,988.26

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Solution

The fourth proportional to 668,919.65, 923,104.35 and 362,988.26 is: 500,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,919.65 : 923,104.35 = 362,988.26 : x
  2. Step 2: Convert to fraction form
    668,919.65/923,104.35 = 362,988.26/x
  3. Step 3: Cross multiply
    668,919.65x = 923,104.35 × 362,988.26
  4. Step 4: Simplify right side
    668,919.65x = 335,076,037,189.41
  5. Step 5: Solve for x
    x = 335,076,037,189.41/668,919.65
  6. Step 6: Final answer
    x = 500,921.21

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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.