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Finding the Fourth Proportional to 285,628.14, 425,888.58 and 277,781.10

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Solution

The fourth proportional to 285,628.14, 425,888.58 and 277,781.10 is: 414,188.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,628.14 : 425,888.58 = 277,781.10 : x
  2. Step 2: Convert to fraction form
    285,628.14/425,888.58 = 277,781.10/x
  3. Step 3: Cross multiply
    285,628.14x = 425,888.58 × 277,781.10
  4. Step 4: Simplify right side
    285,628.14x = 118,303,798,229.84
  5. Step 5: Solve for x
    x = 118,303,798,229.84/285,628.14
  6. Step 6: Final answer
    x = 414,188.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.