Home / 806,430.60-1,209,645.90-570,234.60

Finding the Fourth Proportional to 806,430.60, 1,209,645.90 and 570,234.60

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Solution

The fourth proportional to 806,430.60, 1,209,645.90 and 570,234.60 is: 855,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,430.60 : 1,209,645.90 = 570,234.60 : x
  2. Step 2: Convert to fraction form
    806,430.60/1,209,645.90 = 570,234.60/x
  3. Step 3: Cross multiply
    806,430.60x = 1,209,645.90 × 570,234.60
  4. Step 4: Simplify right side
    806,430.60x = 689,781,945,928.14
  5. Step 5: Solve for x
    x = 689,781,945,928.14/806,430.60
  6. Step 6: Final answer
    x = 855,351.90

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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.