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Finding the Fourth Proportional to 583,988.81, 805,848.55 and 354,671.60

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Solution

The fourth proportional to 583,988.81, 805,848.55 and 354,671.60 is: 489,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,988.81 : 805,848.55 = 354,671.60 : x
  2. Step 2: Convert to fraction form
    583,988.81/805,848.55 = 354,671.60/x
  3. Step 3: Cross multiply
    583,988.81x = 805,848.55 × 354,671.60
  4. Step 4: Simplify right side
    583,988.81x = 285,811,589,670.26
  5. Step 5: Solve for x
    x = 285,811,589,670.26/583,988.81
  6. Step 6: Final answer
    x = 489,412.79

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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.