Home / 598,935.80-898,403.70-386,359.40

Finding the Fourth Proportional to 598,935.80, 898,403.70 and 386,359.40

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Solution

The fourth proportional to 598,935.80, 898,403.70 and 386,359.40 is: 579,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,935.80 : 898,403.70 = 386,359.40 : x
  2. Step 2: Convert to fraction form
    598,935.80/898,403.70 = 386,359.40/x
  3. Step 3: Cross multiply
    598,935.80x = 898,403.70 × 386,359.40
  4. Step 4: Simplify right side
    598,935.80x = 347,106,714,489.78
  5. Step 5: Solve for x
    x = 347,106,714,489.78/598,935.80
  6. Step 6: Final answer
    x = 579,539.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.