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Finding the Fourth Proportional to 450,598.31, 621,813.33 and 257,001.65

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Solution

The fourth proportional to 450,598.31, 621,813.33 and 257,001.65 is: 354,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,598.31 : 621,813.33 = 257,001.65 : x
  2. Step 2: Convert to fraction form
    450,598.31/621,813.33 = 257,001.65/x
  3. Step 3: Cross multiply
    450,598.31x = 621,813.33 × 257,001.65
  4. Step 4: Simplify right side
    450,598.31x = 159,807,048,692.93
  5. Step 5: Solve for x
    x = 159,807,048,692.93/450,598.31
  6. Step 6: Final answer
    x = 354,655.24

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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.