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Finding the Fourth Proportional to 890,903.64, 1,229,455.47 and 483,004.42

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Solution

The fourth proportional to 890,903.64, 1,229,455.47 and 483,004.42 is: 666,550.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,903.64 : 1,229,455.47 = 483,004.42 : x
  2. Step 2: Convert to fraction form
    890,903.64/1,229,455.47 = 483,004.42/x
  3. Step 3: Cross multiply
    890,903.64x = 1,229,455.47 × 483,004.42
  4. Step 4: Simplify right side
    890,903.64x = 593,832,426,203.18
  5. Step 5: Solve for x
    x = 593,832,426,203.18/890,903.64
  6. Step 6: Final answer
    x = 666,550.68

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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.