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Finding the Fourth Proportional to 626,529.60, 939,794.40 and 153,208.80

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Solution

The fourth proportional to 626,529.60, 939,794.40 and 153,208.80 is: 229,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,529.60 : 939,794.40 = 153,208.80 : x
  2. Step 2: Convert to fraction form
    626,529.60/939,794.40 = 153,208.80/x
  3. Step 3: Cross multiply
    626,529.60x = 939,794.40 × 153,208.80
  4. Step 4: Simplify right side
    626,529.60x = 143,984,772,270.72
  5. Step 5: Solve for x
    x = 143,984,772,270.72/626,529.60
  6. Step 6: Final answer
    x = 229,813.20

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Similar ratio
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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.