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Finding the Fourth Proportional to 583,804.78, 805,650.24 and 315,532.78

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Solution

The fourth proportional to 583,804.78, 805,650.24 and 315,532.78 is: 435,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,804.78 : 805,650.24 = 315,532.78 : x
  2. Step 2: Convert to fraction form
    583,804.78/805,650.24 = 315,532.78/x
  3. Step 3: Cross multiply
    583,804.78x = 805,650.24 × 315,532.78
  4. Step 4: Simplify right side
    583,804.78x = 254,209,059,934.87
  5. Step 5: Solve for x
    x = 254,209,059,934.87/583,804.78
  6. Step 6: Final answer
    x = 435,435.04

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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.