Home / 406,220.10-561,653.85-355,774.50

Finding the Fourth Proportional to 406,220.10, 561,653.85 and 355,774.50

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Solution

The fourth proportional to 406,220.10, 561,653.85 and 355,774.50 is: 491,906.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,220.10 : 561,653.85 = 355,774.50 : x
  2. Step 2: Convert to fraction form
    406,220.10/561,653.85 = 355,774.50/x
  3. Step 3: Cross multiply
    406,220.10x = 561,653.85 × 355,774.50
  4. Step 4: Simplify right side
    406,220.10x = 199,822,117,656.83
  5. Step 5: Solve for x
    x = 199,822,117,656.83/406,220.10
  6. Step 6: Final answer
    x = 491,906.03

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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.