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Finding the Fourth Proportional to 599,103,673.20, 898,655,509.80 and 392,479,412.40

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Solution

The fourth proportional to 599,103,673.20, 898,655,509.80 and 392,479,412.40 is: 588,719,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,103,673.20 : 898,655,509.80 = 392,479,412.40 : x
  2. Step 2: Convert to fraction form
    599,103,673.20/898,655,509.80 = 392,479,412.40/x
  3. Step 3: Cross multiply
    599,103,673.20x = 898,655,509.80 × 392,479,412.40
  4. Step 4: Simplify right side
    599,103,673.20x = 352,703,786,436,326,400
  5. Step 5: Solve for x
    x = 352,703,786,436,326,400/599,103,673.20
  6. Step 6: Final answer
    x = 588,719,118.60

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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.