Home / 658,901.36-909,182.40-386,904.18

Finding the Fourth Proportional to 658,901.36, 909,182.40 and 386,904.18

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Solution

The fourth proportional to 658,901.36, 909,182.40 and 386,904.18 is: 533,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,901.36 : 909,182.40 = 386,904.18 : x
  2. Step 2: Convert to fraction form
    658,901.36/909,182.40 = 386,904.18/x
  3. Step 3: Cross multiply
    658,901.36x = 909,182.40 × 386,904.18
  4. Step 4: Simplify right side
    658,901.36x = 351,766,470,942.43
  5. Step 5: Solve for x
    x = 351,766,470,942.43/658,901.36
  6. Step 6: Final answer
    x = 533,868.18

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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.