Home / 623,623.15-860,578.98-394,303.87

Finding the Fourth Proportional to 623,623.15, 860,578.98 and 394,303.87

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Solution

The fourth proportional to 623,623.15, 860,578.98 and 394,303.87 is: 544,126.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,623.15 : 860,578.98 = 394,303.87 : x
  2. Step 2: Convert to fraction form
    623,623.15/860,578.98 = 394,303.87/x
  3. Step 3: Cross multiply
    623,623.15x = 860,578.98 × 394,303.87
  4. Step 4: Simplify right side
    623,623.15x = 339,329,622,254.65
  5. Step 5: Solve for x
    x = 339,329,622,254.65/623,623.15
  6. Step 6: Final answer
    x = 544,126.08

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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.