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Finding the Fourth Proportional to 554,549.76, 765,485.69 and 431,799.12

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Solution

The fourth proportional to 554,549.76, 765,485.69 and 431,799.12 is: 596,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,549.76 : 765,485.69 = 431,799.12 : x
  2. Step 2: Convert to fraction form
    554,549.76/765,485.69 = 431,799.12/x
  3. Step 3: Cross multiply
    554,549.76x = 765,485.69 × 431,799.12
  4. Step 4: Simplify right side
    554,549.76x = 330,536,045,155.60
  5. Step 5: Solve for x
    x = 330,536,045,155.60/554,549.76
  6. Step 6: Final answer
    x = 596,043.98

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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.