Home / 623,617.77-860,617.67-347,999.75

Finding the Fourth Proportional to 623,617.77, 860,617.67 and 347,999.75

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Solution

The fourth proportional to 623,617.77, 860,617.67 and 347,999.75 is: 480,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,617.77 : 860,617.67 = 347,999.75 : x
  2. Step 2: Convert to fraction form
    623,617.77/860,617.67 = 347,999.75/x
  3. Step 3: Cross multiply
    623,617.77x = 860,617.67 × 347,999.75
  4. Step 4: Simplify right side
    623,617.77x = 299,494,727,962.50
  5. Step 5: Solve for x
    x = 299,494,727,962.50/623,617.77
  6. Step 6: Final answer
    x = 480,253.68

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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.