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Finding the Fourth Proportional to 535,341.40, 738,791.80 and 293,634.16

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Solution

The fourth proportional to 535,341.40, 738,791.80 and 293,634.16 is: 405,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,341.40 : 738,791.80 = 293,634.16 : x
  2. Step 2: Convert to fraction form
    535,341.40/738,791.80 = 293,634.16/x
  3. Step 3: Cross multiply
    535,341.40x = 738,791.80 × 293,634.16
  4. Step 4: Simplify right side
    535,341.40x = 216,934,509,607.89
  5. Step 5: Solve for x
    x = 216,934,509,607.89/535,341.40
  6. Step 6: Final answer
    x = 405,226.48

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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.