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Finding the Fourth Proportional to 416,790.59, 575,139.23 and 253,424.40

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Solution

The fourth proportional to 416,790.59, 575,139.23 and 253,424.40 is: 349,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,790.59 : 575,139.23 = 253,424.40 : x
  2. Step 2: Convert to fraction form
    416,790.59/575,139.23 = 253,424.40/x
  3. Step 3: Cross multiply
    416,790.59x = 575,139.23 × 253,424.40
  4. Step 4: Simplify right side
    416,790.59x = 145,754,313,012.09
  5. Step 5: Solve for x
    x = 145,754,313,012.09/416,790.59
  6. Step 6: Final answer
    x = 349,706.35

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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.