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Finding the Fourth Proportional to 583,800.72, 805,644.63 and 315,528.72

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Solution

The fourth proportional to 583,800.72, 805,644.63 and 315,528.72 is: 435,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,800.72 : 805,644.63 = 315,528.72 : x
  2. Step 2: Convert to fraction form
    583,800.72/805,644.63 = 315,528.72/x
  3. Step 3: Cross multiply
    583,800.72x = 805,644.63 × 315,528.72
  4. Step 4: Simplify right side
    583,800.72x = 254,204,018,878.77
  5. Step 5: Solve for x
    x = 254,204,018,878.77/583,800.72
  6. Step 6: Final answer
    x = 435,429.44

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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.