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Finding the Fourth Proportional to 504,935.55, 696,872.79 and 290,075.22

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Solution

The fourth proportional to 504,935.55, 696,872.79 and 290,075.22 is: 400,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,935.55 : 696,872.79 = 290,075.22 : x
  2. Step 2: Convert to fraction form
    504,935.55/696,872.79 = 290,075.22/x
  3. Step 3: Cross multiply
    504,935.55x = 696,872.79 × 290,075.22
  4. Step 4: Simplify right side
    504,935.55x = 202,145,527,871.26
  5. Step 5: Solve for x
    x = 202,145,527,871.26/504,935.55
  6. Step 6: Final answer
    x = 400,339.27

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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.