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Finding the Fourth Proportional to 354,703.40, 532,055.10 and 235,989.80

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Solution

The fourth proportional to 354,703.40, 532,055.10 and 235,989.80 is: 353,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,703.40 : 532,055.10 = 235,989.80 : x
  2. Step 2: Convert to fraction form
    354,703.40/532,055.10 = 235,989.80/x
  3. Step 3: Cross multiply
    354,703.40x = 532,055.10 × 235,989.80
  4. Step 4: Simplify right side
    354,703.40x = 125,559,576,637.98
  5. Step 5: Solve for x
    x = 125,559,576,637.98/354,703.40
  6. Step 6: Final answer
    x = 353,984.70

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Similar ratio
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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.