Home / 577,783.61-865,965.55-324,531.74

Finding the Fourth Proportional to 577,783.61, 865,965.55 and 324,531.74

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Solution

The fourth proportional to 577,783.61, 865,965.55 and 324,531.74 is: 486,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,783.61 : 865,965.55 = 324,531.74 : x
  2. Step 2: Convert to fraction form
    577,783.61/865,965.55 = 324,531.74/x
  3. Step 3: Cross multiply
    577,783.61x = 865,965.55 × 324,531.74
  4. Step 4: Simplify right side
    577,783.61x = 281,033,301,580.40
  5. Step 5: Solve for x
    x = 281,033,301,580.40/577,783.61
  6. Step 6: Final answer
    x = 486,398.89

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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.