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Finding the Fourth Proportional to 540,831.80, 811,247.70 and 341,377.40

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Solution

The fourth proportional to 540,831.80, 811,247.70 and 341,377.40 is: 512,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,831.80 : 811,247.70 = 341,377.40 : x
  2. Step 2: Convert to fraction form
    540,831.80/811,247.70 = 341,377.40/x
  3. Step 3: Cross multiply
    540,831.80x = 811,247.70 × 341,377.40
  4. Step 4: Simplify right side
    540,831.80x = 276,941,630,581.98
  5. Step 5: Solve for x
    x = 276,941,630,581.98/540,831.80
  6. Step 6: Final answer
    x = 512,066.10

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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.