Home / 558,043.20-837,064.80-369,086.40

Finding the Fourth Proportional to 558,043.20, 837,064.80 and 369,086.40

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Solution

The fourth proportional to 558,043.20, 837,064.80 and 369,086.40 is: 553,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,043.20 : 837,064.80 = 369,086.40 : x
  2. Step 2: Convert to fraction form
    558,043.20/837,064.80 = 369,086.40/x
  3. Step 3: Cross multiply
    558,043.20x = 837,064.80 × 369,086.40
  4. Step 4: Simplify right side
    558,043.20x = 308,949,233,598.72
  5. Step 5: Solve for x
    x = 308,949,233,598.72/558,043.20
  6. Step 6: Final answer
    x = 553,629.60

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Double scale
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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.