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Finding the Fourth Proportional to 486,323.22, 671,123.47 and 282,424.27

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Solution

The fourth proportional to 486,323.22, 671,123.47 and 282,424.27 is: 389,744.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,323.22 : 671,123.47 = 282,424.27 : x
  2. Step 2: Convert to fraction form
    486,323.22/671,123.47 = 282,424.27/x
  3. Step 3: Cross multiply
    486,323.22x = 671,123.47 × 282,424.27
  4. Step 4: Simplify right side
    486,323.22x = 189,541,556,094.62
  5. Step 5: Solve for x
    x = 189,541,556,094.62/486,323.22
  6. Step 6: Final answer
    x = 389,744.00

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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.