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Finding the Fourth Proportional to 896,907.72, 1,345,720 and 364,470.42

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Solution

The fourth proportional to 896,907.72, 1,345,720 and 364,470.42 is: 546,851.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,907.72 : 1,345,720 = 364,470.42 : x
  2. Step 2: Convert to fraction form
    896,907.72/1,345,720 = 364,470.42/x
  3. Step 3: Cross multiply
    896,907.72x = 1,345,720 × 364,470.42
  4. Step 4: Simplify right side
    896,907.72x = 490,475,133,602.40
  5. Step 5: Solve for x
    x = 490,475,133,602.40/896,907.72
  6. Step 6: Final answer
    x = 546,851.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.