Home / 806,415.60-1,209,623.40-570,219.60

Finding the Fourth Proportional to 806,415.60, 1,209,623.40 and 570,219.60

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Solution

The fourth proportional to 806,415.60, 1,209,623.40 and 570,219.60 is: 855,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,415.60 : 1,209,623.40 = 570,219.60 : x
  2. Step 2: Convert to fraction form
    806,415.60/1,209,623.40 = 570,219.60/x
  3. Step 3: Cross multiply
    806,415.60x = 1,209,623.40 × 570,219.60
  4. Step 4: Simplify right side
    806,415.60x = 689,750,971,298.64
  5. Step 5: Solve for x
    x = 689,750,971,298.64/806,415.60
  6. Step 6: Final answer
    x = 855,329.40

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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.