Home / 1,407,771.60-2,111,657.40-342,805.20

Finding the Fourth Proportional to 1,407,771.60, 2,111,657.40 and 342,805.20

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Solution

The fourth proportional to 1,407,771.60, 2,111,657.40 and 342,805.20 is: 514,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,771.60 : 2,111,657.40 = 342,805.20 : x
  2. Step 2: Convert to fraction form
    1,407,771.60/2,111,657.40 = 342,805.20/x
  3. Step 3: Cross multiply
    1,407,771.60x = 2,111,657.40 × 342,805.20
  4. Step 4: Simplify right side
    1,407,771.60x = 723,887,137,338.48
  5. Step 5: Solve for x
    x = 723,887,137,338.48/1,407,771.60
  6. Step 6: Final answer
    x = 514,207.80

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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.