Home / 890,710.40-1,336,195.20-291,526.40

Finding the Fourth Proportional to 890,710.40, 1,336,195.20 and 291,526.40

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Solution

The fourth proportional to 890,710.40, 1,336,195.20 and 291,526.40 is: 437,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,710.40 : 1,336,195.20 = 291,526.40 : x
  2. Step 2: Convert to fraction form
    890,710.40/1,336,195.20 = 291,526.40/x
  3. Step 3: Cross multiply
    890,710.40x = 1,336,195.20 × 291,526.40
  4. Step 4: Simplify right side
    890,710.40x = 389,536,176,353.28
  5. Step 5: Solve for x
    x = 389,536,176,353.28/890,710.40
  6. Step 6: Final answer
    x = 437,332.02

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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.