Home / 740,256.70-1,021,561.29-434,338.30

Finding the Fourth Proportional to 740,256.70, 1,021,561.29 and 434,338.30

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Solution

The fourth proportional to 740,256.70, 1,021,561.29 and 434,338.30 is: 599,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,256.70 : 1,021,561.29 = 434,338.30 : x
  2. Step 2: Convert to fraction form
    740,256.70/1,021,561.29 = 434,338.30/x
  3. Step 3: Cross multiply
    740,256.70x = 1,021,561.29 × 434,338.30
  4. Step 4: Simplify right side
    740,256.70x = 443,703,194,044.41
  5. Step 5: Solve for x
    x = 443,703,194,044.41/740,256.70
  6. Step 6: Final answer
    x = 599,390.99

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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.