Home / 689,857.60-952,117.32-403,322.80

Finding the Fourth Proportional to 689,857.60, 952,117.32 and 403,322.80

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Solution

The fourth proportional to 689,857.60, 952,117.32 and 403,322.80 is: 556,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,857.60 : 952,117.32 = 403,322.80 : x
  2. Step 2: Convert to fraction form
    689,857.60/952,117.32 = 403,322.80/x
  3. Step 3: Cross multiply
    689,857.60x = 952,117.32 × 403,322.80
  4. Step 4: Simplify right side
    689,857.60x = 384,010,623,430.90
  5. Step 5: Solve for x
    x = 384,010,623,430.90/689,857.60
  6. Step 6: Final answer
    x = 556,652.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.