Home / 761,522.84-1,050,907.74-421,996.76

Finding the Fourth Proportional to 761,522.84, 1,050,907.74 and 421,996.76

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Solution

The fourth proportional to 761,522.84, 1,050,907.74 and 421,996.76 is: 582,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,522.84 : 1,050,907.74 = 421,996.76 : x
  2. Step 2: Convert to fraction form
    761,522.84/1,050,907.74 = 421,996.76/x
  3. Step 3: Cross multiply
    761,522.84x = 1,050,907.74 × 421,996.76
  4. Step 4: Simplify right side
    761,522.84x = 443,479,661,338.92
  5. Step 5: Solve for x
    x = 443,479,661,338.92/761,522.84
  6. Step 6: Final answer
    x = 582,358.98

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.