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Finding the Fourth Proportional to 834,613.84, 1,151,661.48 and 495,015.76

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Solution

The fourth proportional to 834,613.84, 1,151,661.48 and 495,015.76 is: 683,059.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,613.84 : 1,151,661.48 = 495,015.76 : x
  2. Step 2: Convert to fraction form
    834,613.84/1,151,661.48 = 495,015.76/x
  3. Step 3: Cross multiply
    834,613.84x = 1,151,661.48 × 495,015.76
  4. Step 4: Simplify right side
    834,613.84x = 570,090,582,784.93
  5. Step 5: Solve for x
    x = 570,090,582,784.93/834,613.84
  6. Step 6: Final answer
    x = 683,059.11

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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.