Home / 406,623.68-561,075.36-255,613.76

Finding the Fourth Proportional to 406,623.68, 561,075.36 and 255,613.76

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Solution

The fourth proportional to 406,623.68, 561,075.36 and 255,613.76 is: 352,705.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,623.68 : 561,075.36 = 255,613.76 : x
  2. Step 2: Convert to fraction form
    406,623.68/561,075.36 = 255,613.76/x
  3. Step 3: Cross multiply
    406,623.68x = 561,075.36 × 255,613.76
  4. Step 4: Simplify right side
    406,623.68x = 143,418,582,412.95
  5. Step 5: Solve for x
    x = 143,418,582,412.95/406,623.68
  6. Step 6: Final answer
    x = 352,705.93

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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.