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Finding the Fourth Proportional to 598,976.80, 898,465.20 and 508,775.20

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Solution

The fourth proportional to 598,976.80, 898,465.20 and 508,775.20 is: 763,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,976.80 : 898,465.20 = 508,775.20 : x
  2. Step 2: Convert to fraction form
    598,976.80/898,465.20 = 508,775.20/x
  3. Step 3: Cross multiply
    598,976.80x = 898,465.20 × 508,775.20
  4. Step 4: Simplify right side
    598,976.80x = 457,116,811,823.04
  5. Step 5: Solve for x
    x = 457,116,811,823.04/598,976.80
  6. Step 6: Final answer
    x = 763,162.80

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Double scale
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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.