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Finding the Fourth Proportional to 489,527.86, 734,158.08 and 134,457.46

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Solution

The fourth proportional to 489,527.86, 734,158.08 and 134,457.46 is: 201,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,527.86 : 734,158.08 = 134,457.46 : x
  2. Step 2: Convert to fraction form
    489,527.86/734,158.08 = 134,457.46/x
  3. Step 3: Cross multiply
    489,527.86x = 734,158.08 × 134,457.46
  4. Step 4: Simplify right side
    489,527.86x = 98,713,030,675.28
  5. Step 5: Solve for x
    x = 98,713,030,675.28/489,527.86
  6. Step 6: Final answer
    x = 201,649.46

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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.