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Finding the Fourth Proportional to 522,087.30, 783,130.95 and 167,112.90

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Solution

The fourth proportional to 522,087.30, 783,130.95 and 167,112.90 is: 250,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,087.30 : 783,130.95 = 167,112.90 : x
  2. Step 2: Convert to fraction form
    522,087.30/783,130.95 = 167,112.90/x
  3. Step 3: Cross multiply
    522,087.30x = 783,130.95 × 167,112.90
  4. Step 4: Simplify right side
    522,087.30x = 130,871,284,134.26
  5. Step 5: Solve for x
    x = 130,871,284,134.26/522,087.30
  6. Step 6: Final answer
    x = 250,669.35

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Half scale
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Double scale
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Similar ratio
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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.