Home / 929,989.80-1,395,114.30-397,506.60

Finding the Fourth Proportional to 929,989.80, 1,395,114.30 and 397,506.60

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Solution

The fourth proportional to 929,989.80, 1,395,114.30 and 397,506.60 is: 596,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,989.80 : 1,395,114.30 = 397,506.60 : x
  2. Step 2: Convert to fraction form
    929,989.80/1,395,114.30 = 397,506.60/x
  3. Step 3: Cross multiply
    929,989.80x = 1,395,114.30 × 397,506.60
  4. Step 4: Simplify right side
    929,989.80x = 554,567,142,004.38
  5. Step 5: Solve for x
    x = 554,567,142,004.38/929,989.80
  6. Step 6: Final answer
    x = 596,315.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.