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Finding the Fourth Proportional to 405,924.04, 560,450.82 and 253,023.40

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Solution

The fourth proportional to 405,924.04, 560,450.82 and 253,023.40 is: 349,344.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,924.04 : 560,450.82 = 253,023.40 : x
  2. Step 2: Convert to fraction form
    405,924.04/560,450.82 = 253,023.40/x
  3. Step 3: Cross multiply
    405,924.04x = 560,450.82 × 253,023.40
  4. Step 4: Simplify right side
    405,924.04x = 141,807,172,009.19
  5. Step 5: Solve for x
    x = 141,807,172,009.19/405,924.04
  6. Step 6: Final answer
    x = 349,344.11

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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.