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Finding the Fourth Proportional to 559,890.60, 839,835.90 and 349,938.60

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Solution

The fourth proportional to 559,890.60, 839,835.90 and 349,938.60 is: 524,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,890.60 : 839,835.90 = 349,938.60 : x
  2. Step 2: Convert to fraction form
    559,890.60/839,835.90 = 349,938.60/x
  3. Step 3: Cross multiply
    559,890.60x = 839,835.90 × 349,938.60
  4. Step 4: Simplify right side
    559,890.60x = 293,890,999,075.74
  5. Step 5: Solve for x
    x = 293,890,999,075.74/559,890.60
  6. Step 6: Final answer
    x = 524,907.90

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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.