Home / 609,041.23-840,283.67-354,343.21

Finding the Fourth Proportional to 609,041.23, 840,283.67 and 354,343.21

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Solution

The fourth proportional to 609,041.23, 840,283.67 and 354,343.21 is: 488,881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,041.23 : 840,283.67 = 354,343.21 : x
  2. Step 2: Convert to fraction form
    609,041.23/840,283.67 = 354,343.21/x
  3. Step 3: Cross multiply
    609,041.23x = 840,283.67 × 354,343.21
  4. Step 4: Simplify right side
    609,041.23x = 297,748,811,723.53
  5. Step 5: Solve for x
    x = 297,748,811,723.53/609,041.23
  6. Step 6: Final answer
    x = 488,881.21

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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.