Home / 1,305,280,688.55-1,957,921,032.83-443,637,680.55

Finding the Fourth Proportional to 1,305,280,688.55, 1,957,921,032.83 and 443,637,680.55

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Solution

The fourth proportional to 1,305,280,688.55, 1,957,921,032.83 and 443,637,680.55 is: 665,456,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,280,688.55 : 1,957,921,032.83 = 443,637,680.55 : x
  2. Step 2: Convert to fraction form
    1,305,280,688.55/1,957,921,032.83 = 443,637,680.55/x
  3. Step 3: Cross multiply
    1,305,280,688.55x = 1,957,921,032.83 × 443,637,680.55
  4. Step 4: Simplify right side
    1,305,280,688.55x = 868,607,545,702,543,488
  5. Step 5: Solve for x
    x = 868,607,545,702,543,488/1,305,280,688.55
  6. Step 6: Final answer
    x = 665,456,520.83

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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.