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Finding the Fourth Proportional to 511,232.80, 705,503.64 and 293,423.80

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Solution

The fourth proportional to 511,232.80, 705,503.64 and 293,423.80 is: 404,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,232.80 : 705,503.64 = 293,423.80 : x
  2. Step 2: Convert to fraction form
    511,232.80/705,503.64 = 293,423.80/x
  3. Step 3: Cross multiply
    511,232.80x = 705,503.64 × 293,423.80
  4. Step 4: Simplify right side
    511,232.80x = 207,011,558,962.63
  5. Step 5: Solve for x
    x = 207,011,558,962.63/511,232.80
  6. Step 6: Final answer
    x = 404,926.21

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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.