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Finding the Fourth Proportional to 656,792.16, 906,259.68 and 381,050.16

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Solution

The fourth proportional to 656,792.16, 906,259.68 and 381,050.16 is: 525,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,792.16 : 906,259.68 = 381,050.16 : x
  2. Step 2: Convert to fraction form
    656,792.16/906,259.68 = 381,050.16/x
  3. Step 3: Cross multiply
    656,792.16x = 906,259.68 × 381,050.16
  4. Step 4: Simplify right side
    656,792.16x = 345,330,396,065.55
  5. Step 5: Solve for x
    x = 345,330,396,065.55/656,792.16
  6. Step 6: Final answer
    x = 525,783.37

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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.