Home / 695,829.08-960,254.40-405,434.36

Finding the Fourth Proportional to 695,829.08, 960,254.40 and 405,434.36

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Solution

The fourth proportional to 695,829.08, 960,254.40 and 405,434.36 is: 559,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,829.08 : 960,254.40 = 405,434.36 : x
  2. Step 2: Convert to fraction form
    695,829.08/960,254.40 = 405,434.36/x
  3. Step 3: Cross multiply
    695,829.08x = 960,254.40 × 405,434.36
  4. Step 4: Simplify right side
    695,829.08x = 389,320,128,101.18
  5. Step 5: Solve for x
    x = 389,320,128,101.18/695,829.08
  6. Step 6: Final answer
    x = 559,505.40

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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.