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Finding the Fourth Proportional to 519,600.99, 716,972.40 and 315,545.52

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Solution

The fourth proportional to 519,600.99, 716,972.40 and 315,545.52 is: 435,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,600.99 : 716,972.40 = 315,545.52 : x
  2. Step 2: Convert to fraction form
    519,600.99/716,972.40 = 315,545.52/x
  3. Step 3: Cross multiply
    519,600.99x = 716,972.40 × 315,545.52
  4. Step 4: Simplify right side
    519,600.99x = 226,237,428,783.65
  5. Step 5: Solve for x
    x = 226,237,428,783.65/519,600.99
  6. Step 6: Final answer
    x = 435,406.08

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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.