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Finding the Fourth Proportional to 533,630.30, 736,409.57 and 291,912.81

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Solution

The fourth proportional to 533,630.30, 736,409.57 and 291,912.81 is: 402,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,630.30 : 736,409.57 = 291,912.81 : x
  2. Step 2: Convert to fraction form
    533,630.30/736,409.57 = 291,912.81/x
  3. Step 3: Cross multiply
    533,630.30x = 736,409.57 × 291,912.81
  4. Step 4: Simplify right side
    533,630.30x = 214,967,385,430.03
  5. Step 5: Solve for x
    x = 214,967,385,430.03/533,630.30
  6. Step 6: Final answer
    x = 402,839.55

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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.