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Finding the Fourth Proportional to 622,053.72, 858,461.46 and 350,139.18

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Solution

The fourth proportional to 622,053.72, 858,461.46 and 350,139.18 is: 483,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,053.72 : 858,461.46 = 350,139.18 : x
  2. Step 2: Convert to fraction form
    622,053.72/858,461.46 = 350,139.18/x
  3. Step 3: Cross multiply
    622,053.72x = 858,461.46 × 350,139.18
  4. Step 4: Simplify right side
    622,053.72x = 300,580,991,666.00
  5. Step 5: Solve for x
    x = 300,580,991,666.00/622,053.72
  6. Step 6: Final answer
    x = 483,207.45

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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.