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Finding the Fourth Proportional to 834,612.84, 1,151,660.10 and 495,014.76

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Solution

The fourth proportional to 834,612.84, 1,151,660.10 and 495,014.76 is: 683,057.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,612.84 : 1,151,660.10 = 495,014.76 : x
  2. Step 2: Convert to fraction form
    834,612.84/1,151,660.10 = 495,014.76/x
  3. Step 3: Cross multiply
    834,612.84x = 1,151,660.10 × 495,014.76
  4. Step 4: Simplify right side
    834,612.84x = 570,088,748,003.08
  5. Step 5: Solve for x
    x = 570,088,748,003.08/834,612.84
  6. Step 6: Final answer
    x = 683,057.73

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Double scale
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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.