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Finding the Fourth Proportional to 525,027.40, 786,633.90 and 243,968.20

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Solution

The fourth proportional to 525,027.40, 786,633.90 and 243,968.20 is: 365,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,027.40 : 786,633.90 = 243,968.20 : x
  2. Step 2: Convert to fraction form
    525,027.40/786,633.90 = 243,968.20/x
  3. Step 3: Cross multiply
    525,027.40x = 786,633.90 × 243,968.20
  4. Step 4: Simplify right side
    525,027.40x = 191,913,656,641.98
  5. Step 5: Solve for x
    x = 191,913,656,641.98/525,027.40
  6. Step 6: Final answer
    x = 365,530.74

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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.