Home / 948,856.83-1,309,455.12-519,136.98

Finding the Fourth Proportional to 948,856.83, 1,309,455.12 and 519,136.98

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Solution

The fourth proportional to 948,856.83, 1,309,455.12 and 519,136.98 is: 716,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,856.83 : 1,309,455.12 = 519,136.98 : x
  2. Step 2: Convert to fraction form
    948,856.83/1,309,455.12 = 519,136.98/x
  3. Step 3: Cross multiply
    948,856.83x = 1,309,455.12 × 519,136.98
  4. Step 4: Simplify right side
    948,856.83x = 679,786,576,442.34
  5. Step 5: Solve for x
    x = 679,786,576,442.34/948,856.83
  6. Step 6: Final answer
    x = 716,426.92

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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.