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Finding the Fourth Proportional to 572,435.89, 857,643.46 and 347,339.22

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Solution

The fourth proportional to 572,435.89, 857,643.46 and 347,339.22 is: 520,395.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,435.89 : 857,643.46 = 347,339.22 : x
  2. Step 2: Convert to fraction form
    572,435.89/857,643.46 = 347,339.22/x
  3. Step 3: Cross multiply
    572,435.89x = 857,643.46 × 347,339.22
  4. Step 4: Simplify right side
    572,435.89x = 297,893,210,434.50
  5. Step 5: Solve for x
    x = 297,893,210,434.50/572,435.89
  6. Step 6: Final answer
    x = 520,395.76

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Double scale
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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.