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Finding the Fourth Proportional to 458,987.73, 633,206.59 and 286,606.42

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Solution

The fourth proportional to 458,987.73, 633,206.59 and 286,606.42 is: 395,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,987.73 : 633,206.59 = 286,606.42 : x
  2. Step 2: Convert to fraction form
    458,987.73/633,206.59 = 286,606.42/x
  3. Step 3: Cross multiply
    458,987.73x = 633,206.59 × 286,606.42
  4. Step 4: Simplify right side
    458,987.73x = 181,481,074,746.81
  5. Step 5: Solve for x
    x = 181,481,074,746.81/458,987.73
  6. Step 6: Final answer
    x = 395,394.18

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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.