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Finding the Fourth Proportional to 626,605.98, 939,927.20 and 153,291.20

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Solution

The fourth proportional to 626,605.98, 939,927.20 and 153,291.20 is: 229,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,605.98 : 939,927.20 = 153,291.20 : x
  2. Step 2: Convert to fraction form
    626,605.98/939,927.20 = 153,291.20/x
  3. Step 3: Cross multiply
    626,605.98x = 939,927.20 × 153,291.20
  4. Step 4: Simplify right side
    626,605.98x = 144,082,562,934.55
  5. Step 5: Solve for x
    x = 144,082,562,934.55/626,605.98
  6. Step 6: Final answer
    x = 229,941.25

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Double scale
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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.