Home / 623,623.48-860,608.26-378,537.40

Finding the Fourth Proportional to 623,623.48, 860,608.26 and 378,537.40

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Solution

The fourth proportional to 623,623.48, 860,608.26 and 378,537.40 is: 522,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,623.48 : 860,608.26 = 378,537.40 : x
  2. Step 2: Convert to fraction form
    623,623.48/860,608.26 = 378,537.40/x
  3. Step 3: Cross multiply
    623,623.48x = 860,608.26 × 378,537.40
  4. Step 4: Simplify right side
    623,623.48x = 325,772,413,158.92
  5. Step 5: Solve for x
    x = 325,772,413,158.92/623,623.48
  6. Step 6: Final answer
    x = 522,386.38

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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.