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Finding the Fourth Proportional to 583,461.12, 805,165.20 and 328,807.20

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Solution

The fourth proportional to 583,461.12, 805,165.20 and 328,807.20 is: 453,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,461.12 : 805,165.20 = 328,807.20 : x
  2. Step 2: Convert to fraction form
    583,461.12/805,165.20 = 328,807.20/x
  3. Step 3: Cross multiply
    583,461.12x = 805,165.20 × 328,807.20
  4. Step 4: Simplify right side
    583,461.12x = 264,744,114,949.44
  5. Step 5: Solve for x
    x = 264,744,114,949.44/583,461.12
  6. Step 6: Final answer
    x = 453,747.65

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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.