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Finding the Fourth Proportional to 621,657.19, 857,888.24 and 367,024.78

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Solution

The fourth proportional to 621,657.19, 857,888.24 and 367,024.78 is: 506,494.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,657.19 : 857,888.24 = 367,024.78 : x
  2. Step 2: Convert to fraction form
    621,657.19/857,888.24 = 367,024.78/x
  3. Step 3: Cross multiply
    621,657.19x = 857,888.24 × 367,024.78
  4. Step 4: Simplify right side
    621,657.19x = 314,866,242,550.59
  5. Step 5: Solve for x
    x = 314,866,242,550.59/621,657.19
  6. Step 6: Final answer
    x = 506,494.97

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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.