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Finding the Fourth Proportional to 622,512.93, 859,070.76 and 350,585.45

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Solution

The fourth proportional to 622,512.93, 859,070.76 and 350,585.45 is: 483,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,512.93 : 859,070.76 = 350,585.45 : x
  2. Step 2: Convert to fraction form
    622,512.93/859,070.76 = 350,585.45/x
  3. Step 3: Cross multiply
    622,512.93x = 859,070.76 × 350,585.45
  4. Step 4: Simplify right side
    622,512.93x = 301,177,704,681.09
  5. Step 5: Solve for x
    x = 301,177,704,681.09/622,512.93
  6. Step 6: Final answer
    x = 483,809.56

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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.