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Finding the Fourth Proportional to 393,114.30, 589,671.45 and 366,870.30

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Solution

The fourth proportional to 393,114.30, 589,671.45 and 366,870.30 is: 550,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,114.30 : 589,671.45 = 366,870.30 : x
  2. Step 2: Convert to fraction form
    393,114.30/589,671.45 = 366,870.30/x
  3. Step 3: Cross multiply
    393,114.30x = 589,671.45 × 366,870.30
  4. Step 4: Simplify right side
    393,114.30x = 216,332,941,762.94
  5. Step 5: Solve for x
    x = 216,332,941,762.94/393,114.30
  6. Step 6: Final answer
    x = 550,305.45

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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.