Home / 623,377.08-860,057.82-381,407.40

Finding the Fourth Proportional to 623,377.08, 860,057.82 and 381,407.40

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Solution

The fourth proportional to 623,377.08, 860,057.82 and 381,407.40 is: 526,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,377.08 : 860,057.82 = 381,407.40 : x
  2. Step 2: Convert to fraction form
    623,377.08/860,057.82 = 381,407.40/x
  3. Step 3: Cross multiply
    623,377.08x = 860,057.82 × 381,407.40
  4. Step 4: Simplify right side
    623,377.08x = 328,032,416,975.87
  5. Step 5: Solve for x
    x = 328,032,416,975.87/623,377.08
  6. Step 6: Final answer
    x = 526,218.28

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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.