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Finding the Fourth Proportional to 583,908.55, 805,794.02 and 315,636.55

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Solution

The fourth proportional to 583,908.55, 805,794.02 and 315,636.55 is: 435,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,908.55 : 805,794.02 = 315,636.55 : x
  2. Step 2: Convert to fraction form
    583,908.55/805,794.02 = 315,636.55/x
  3. Step 3: Cross multiply
    583,908.55x = 805,794.02 × 315,636.55
  4. Step 4: Simplify right side
    583,908.55x = 254,338,044,483.43
  5. Step 5: Solve for x
    x = 254,338,044,483.43/583,908.55
  6. Step 6: Final answer
    x = 435,578.56

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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.