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Finding the Fourth Proportional to 672,761.34, 928,417.98 and 366,835.32

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Solution

The fourth proportional to 672,761.34, 928,417.98 and 366,835.32 is: 506,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,761.34 : 928,417.98 = 366,835.32 : x
  2. Step 2: Convert to fraction form
    672,761.34/928,417.98 = 366,835.32/x
  3. Step 3: Cross multiply
    672,761.34x = 928,417.98 × 366,835.32
  4. Step 4: Simplify right side
    672,761.34x = 340,576,506,787.05
  5. Step 5: Solve for x
    x = 340,576,506,787.05/672,761.34
  6. Step 6: Final answer
    x = 506,236.74

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Double scale
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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.