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Finding the Fourth Proportional to 583,888.28, 805,765.47 and 315,616.28

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Solution

The fourth proportional to 583,888.28, 805,765.47 and 315,616.28 is: 435,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,888.28 : 805,765.47 = 315,616.28 : x
  2. Step 2: Convert to fraction form
    583,888.28/805,765.47 = 315,616.28/x
  3. Step 3: Cross multiply
    583,888.28x = 805,765.47 × 315,616.28
  4. Step 4: Simplify right side
    583,888.28x = 254,312,700,193.85
  5. Step 5: Solve for x
    x = 254,312,700,193.85/583,888.28
  6. Step 6: Final answer
    x = 435,550.27

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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.