Home / 923,718.20-1,274,706.28-515,808.68

Finding the Fourth Proportional to 923,718.20, 1,274,706.28 and 515,808.68

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Solution

The fourth proportional to 923,718.20, 1,274,706.28 and 515,808.68 is: 711,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,718.20 : 1,274,706.28 = 515,808.68 : x
  2. Step 2: Convert to fraction form
    923,718.20/1,274,706.28 = 515,808.68/x
  3. Step 3: Cross multiply
    923,718.20x = 1,274,706.28 × 515,808.68
  4. Step 4: Simplify right side
    923,718.20x = 657,504,563,674.51
  5. Step 5: Solve for x
    x = 657,504,563,674.51/923,718.20
  6. Step 6: Final answer
    x = 711,802.11

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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.