Home / 923,612.13-1,274,606.37-515,700.18

Finding the Fourth Proportional to 923,612.13, 1,274,606.37 and 515,700.18

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Solution

The fourth proportional to 923,612.13, 1,274,606.37 and 515,700.18 is: 711,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,612.13 : 1,274,606.37 = 515,700.18 : x
  2. Step 2: Convert to fraction form
    923,612.13/1,274,606.37 = 515,700.18/x
  3. Step 3: Cross multiply
    923,612.13x = 1,274,606.37 × 515,700.18
  4. Step 4: Simplify right side
    923,612.13x = 657,314,734,438.15
  5. Step 5: Solve for x
    x = 657,314,734,438.15/923,612.13
  6. Step 6: Final answer
    x = 711,678.33

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Double scale
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Similar ratio
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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.