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Finding the Fourth Proportional to 424,751.16, 637,225.36 and 140,424.56

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Solution

The fourth proportional to 424,751.16, 637,225.36 and 140,424.56 is: 210,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,751.16 : 637,225.36 = 140,424.56 : x
  2. Step 2: Convert to fraction form
    424,751.16/637,225.36 = 140,424.56/x
  3. Step 3: Cross multiply
    424,751.16x = 637,225.36 × 140,424.56
  4. Step 4: Simplify right side
    424,751.16x = 89,482,090,798.84
  5. Step 5: Solve for x
    x = 89,482,090,798.84/424,751.16
  6. Step 6: Final answer
    x = 210,669.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.