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Finding the Fourth Proportional to 583,885.28, 805,761.33 and 315,613.28

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Solution

The fourth proportional to 583,885.28, 805,761.33 and 315,613.28 is: 435,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,885.28 : 805,761.33 = 315,613.28 : x
  2. Step 2: Convert to fraction form
    583,885.28/805,761.33 = 315,613.28/x
  3. Step 3: Cross multiply
    583,885.28x = 805,761.33 × 315,613.28
  4. Step 4: Simplify right side
    583,885.28x = 254,308,976,258.46
  5. Step 5: Solve for x
    x = 254,308,976,258.46/583,885.28
  6. Step 6: Final answer
    x = 435,546.13

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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.