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Finding the Fourth Proportional to 423,690.48, 584,448.76 and 253,826.18

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Solution

The fourth proportional to 423,690.48, 584,448.76 and 253,826.18 is: 350,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,690.48 : 584,448.76 = 253,826.18 : x
  2. Step 2: Convert to fraction form
    423,690.48/584,448.76 = 253,826.18/x
  3. Step 3: Cross multiply
    423,690.48x = 584,448.76 × 253,826.18
  4. Step 4: Simplify right side
    423,690.48x = 148,348,396,156.54
  5. Step 5: Solve for x
    x = 148,348,396,156.54/423,690.48
  6. Step 6: Final answer
    x = 350,133.89

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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.