Home / 593,405,999.40-890,108,999.10-409,739,989.80

Finding the Fourth Proportional to 593,405,999.40, 890,108,999.10 and 409,739,989.80

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Solution

The fourth proportional to 593,405,999.40, 890,108,999.10 and 409,739,989.80 is: 614,609,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,405,999.40 : 890,108,999.10 = 409,739,989.80 : x
  2. Step 2: Convert to fraction form
    593,405,999.40/890,108,999.10 = 409,739,989.80/x
  3. Step 3: Cross multiply
    593,405,999.40x = 890,108,999.10 × 409,739,989.80
  4. Step 4: Simplify right side
    593,405,999.40x = 364,713,252,212,122,240
  5. Step 5: Solve for x
    x = 364,713,252,212,122,240/593,405,999.40
  6. Step 6: Final answer
    x = 614,609,984.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.