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Finding the Fourth Proportional to 506,576.42, 759,864.47 and 190,959.51

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Solution

The fourth proportional to 506,576.42, 759,864.47 and 190,959.51 is: 286,439.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,576.42 : 759,864.47 = 190,959.51 : x
  2. Step 2: Convert to fraction form
    506,576.42/759,864.47 = 190,959.51/x
  3. Step 3: Cross multiply
    506,576.42x = 759,864.47 × 190,959.51
  4. Step 4: Simplify right side
    506,576.42x = 145,103,345,902.81
  5. Step 5: Solve for x
    x = 145,103,345,902.81/506,576.42
  6. Step 6: Final answer
    x = 286,439.21

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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.