Home / 656,145.09-899,574.75-644,187.60

Finding the Fourth Proportional to 656,145.09, 899,574.75 and 644,187.60

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Solution

The fourth proportional to 656,145.09, 899,574.75 and 644,187.60 is: 883,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,145.09 : 899,574.75 = 644,187.60 : x
  2. Step 2: Convert to fraction form
    656,145.09/899,574.75 = 644,187.60/x
  3. Step 3: Cross multiply
    656,145.09x = 899,574.75 × 644,187.60
  4. Step 4: Simplify right side
    656,145.09x = 579,494,899,223.10
  5. Step 5: Solve for x
    x = 579,494,899,223.10/656,145.09
  6. Step 6: Final answer
    x = 883,181.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.