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Finding the Fourth Proportional to 583,385.77, 805,072.37 and 328,746.07

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Solution

The fourth proportional to 583,385.77, 805,072.37 and 328,746.07 is: 453,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,385.77 : 805,072.37 = 328,746.07 : x
  2. Step 2: Convert to fraction form
    583,385.77/805,072.37 = 328,746.07/x
  3. Step 3: Cross multiply
    583,385.77x = 805,072.37 × 328,746.07
  4. Step 4: Simplify right side
    583,385.77x = 264,664,372,537.16
  5. Step 5: Solve for x
    x = 264,664,372,537.16/583,385.77
  6. Step 6: Final answer
    x = 453,669.58

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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.