Home / 623,715.72-860,531.22-381,746.04

Finding the Fourth Proportional to 623,715.72, 860,531.22 and 381,746.04

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Solution

The fourth proportional to 623,715.72, 860,531.22 and 381,746.04 is: 526,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,715.72 : 860,531.22 = 381,746.04 : x
  2. Step 2: Convert to fraction form
    623,715.72/860,531.22 = 381,746.04/x
  3. Step 3: Cross multiply
    623,715.72x = 860,531.22 × 381,746.04
  4. Step 4: Simplify right side
    623,715.72x = 328,504,384,099.82
  5. Step 5: Solve for x
    x = 328,504,384,099.82/623,715.72
  6. Step 6: Final answer
    x = 526,689.28

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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.