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Finding the Fourth Proportional to 348,395.64, 522,681.20 and 99,077.64

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Solution

The fourth proportional to 348,395.64, 522,681.20 and 99,077.64 is: 148,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,395.64 : 522,681.20 = 99,077.64 : x
  2. Step 2: Convert to fraction form
    348,395.64/522,681.20 = 99,077.64/x
  3. Step 3: Cross multiply
    348,395.64x = 522,681.20 × 99,077.64
  4. Step 4: Simplify right side
    348,395.64x = 51,786,019,768.37
  5. Step 5: Solve for x
    x = 51,786,019,768.37/348,395.64
  6. Step 6: Final answer
    x = 148,641.41

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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.