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Finding the Fourth Proportional to 583,350.75, 805,024.58 and 315,078.75

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Solution

The fourth proportional to 583,350.75, 805,024.58 and 315,078.75 is: 434,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,350.75 : 805,024.58 = 315,078.75 : x
  2. Step 2: Convert to fraction form
    583,350.75/805,024.58 = 315,078.75/x
  3. Step 3: Cross multiply
    583,350.75x = 805,024.58 × 315,078.75
  4. Step 4: Simplify right side
    583,350.75x = 253,646,136,810.28
  5. Step 5: Solve for x
    x = 253,646,136,810.28/583,350.75
  6. Step 6: Final answer
    x = 434,808.97

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Double scale
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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.