Home / 923,603.07-1,274,559.00-515,711.31

Finding the Fourth Proportional to 923,603.07, 1,274,559.00 and 515,711.31

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Solution

The fourth proportional to 923,603.07, 1,274,559.00 and 515,711.31 is: 711,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,603.07 : 1,274,559.00 = 515,711.31 : x
  2. Step 2: Convert to fraction form
    923,603.07/1,274,559.00 = 515,711.31/x
  3. Step 3: Cross multiply
    923,603.07x = 1,274,559.00 × 515,711.31
  4. Step 4: Simplify right side
    923,603.07x = 657,304,484,848.78
  5. Step 5: Solve for x
    x = 657,304,484,848.78/923,603.07
  6. Step 6: Final answer
    x = 711,674.21

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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.