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Finding the Fourth Proportional to 522,817.70, 784,210.35 and 148,840.70

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Solution

The fourth proportional to 522,817.70, 784,210.35 and 148,840.70 is: 223,256.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,817.70 : 784,210.35 = 148,840.70 : x
  2. Step 2: Convert to fraction form
    522,817.70/784,210.35 = 148,840.70/x
  3. Step 3: Cross multiply
    522,817.70x = 784,210.35 × 148,840.70
  4. Step 4: Simplify right side
    522,817.70x = 116,722,417,441.25
  5. Step 5: Solve for x
    x = 116,722,417,441.25/522,817.70
  6. Step 6: Final answer
    x = 223,256.44

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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.