Home / 1,018,711.70-1,526,951.55-512,465.30

Finding the Fourth Proportional to 1,018,711.70, 1,526,951.55 and 512,465.30

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Solution

The fourth proportional to 1,018,711.70, 1,526,951.55 and 512,465.30 is: 768,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,711.70 : 1,526,951.55 = 512,465.30 : x
  2. Step 2: Convert to fraction form
    1,018,711.70/1,526,951.55 = 512,465.30/x
  3. Step 3: Cross multiply
    1,018,711.70x = 1,526,951.55 × 512,465.30
  4. Step 4: Simplify right side
    1,018,711.70x = 782,509,684,156.22
  5. Step 5: Solve for x
    x = 782,509,684,156.22/1,018,711.70
  6. Step 6: Final answer
    x = 768,136.54

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Double scale
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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.