Home / 653,328.18-979,784.91-209,992.50

Finding the Fourth Proportional to 653,328.18, 979,784.91 and 209,992.50

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Solution

The fourth proportional to 653,328.18, 979,784.91 and 209,992.50 is: 314,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,328.18 : 979,784.91 = 209,992.50 : x
  2. Step 2: Convert to fraction form
    653,328.18/979,784.91 = 209,992.50/x
  3. Step 3: Cross multiply
    653,328.18x = 979,784.91 × 209,992.50
  4. Step 4: Simplify right side
    653,328.18x = 205,747,482,713.18
  5. Step 5: Solve for x
    x = 205,747,482,713.18/653,328.18
  6. Step 6: Final answer
    x = 314,922.10

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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.