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Finding the Fourth Proportional to 406,343.04, 561,030.48 and 253,440.96

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Solution

The fourth proportional to 406,343.04, 561,030.48 and 253,440.96 is: 349,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,343.04 : 561,030.48 = 253,440.96 : x
  2. Step 2: Convert to fraction form
    406,343.04/561,030.48 = 253,440.96/x
  3. Step 3: Cross multiply
    406,343.04x = 561,030.48 × 253,440.96
  4. Step 4: Simplify right side
    406,343.04x = 142,188,103,440.46
  5. Step 5: Solve for x
    x = 142,188,103,440.46/406,343.04
  6. Step 6: Final answer
    x = 349,921.35

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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.