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Finding the Fourth Proportional to 333,557.45, 499,812.23 and 257,841.51

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Solution

The fourth proportional to 333,557.45, 499,812.23 and 257,841.51 is: 386,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,557.45 : 499,812.23 = 257,841.51 : x
  2. Step 2: Convert to fraction form
    333,557.45/499,812.23 = 257,841.51/x
  3. Step 3: Cross multiply
    333,557.45x = 499,812.23 × 257,841.51
  4. Step 4: Simplify right side
    333,557.45x = 128,872,338,810.46
  5. Step 5: Solve for x
    x = 128,872,338,810.46/333,557.45
  6. Step 6: Final answer
    x = 386,357.25

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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.