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Finding the Fourth Proportional to 533,340.18, 736,194.78 and 307,075.86

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Solution

The fourth proportional to 533,340.18, 736,194.78 and 307,075.86 is: 423,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,340.18 : 736,194.78 = 307,075.86 : x
  2. Step 2: Convert to fraction form
    533,340.18/736,194.78 = 307,075.86/x
  3. Step 3: Cross multiply
    533,340.18x = 736,194.78 × 307,075.86
  4. Step 4: Simplify right side
    533,340.18x = 226,067,645,196.01
  5. Step 5: Solve for x
    x = 226,067,645,196.01/533,340.18
  6. Step 6: Final answer
    x = 423,871.39

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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.