Home / 644,519.04-889,406.10-358,056.60

Finding the Fourth Proportional to 644,519.04, 889,406.10 and 358,056.60

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Solution

The fourth proportional to 644,519.04, 889,406.10 and 358,056.60 is: 494,101.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,519.04 : 889,406.10 = 358,056.60 : x
  2. Step 2: Convert to fraction form
    644,519.04/889,406.10 = 358,056.60/x
  3. Step 3: Cross multiply
    644,519.04x = 889,406.10 × 358,056.60
  4. Step 4: Simplify right side
    644,519.04x = 318,457,724,185.26
  5. Step 5: Solve for x
    x = 318,457,724,185.26/644,519.04
  6. Step 6: Final answer
    x = 494,101.34

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Double scale
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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.