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Finding the Fourth Proportional to 531,083.80, 732,886.44 and 289,368.34

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Solution

The fourth proportional to 531,083.80, 732,886.44 and 289,368.34 is: 399,323.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,083.80 : 732,886.44 = 289,368.34 : x
  2. Step 2: Convert to fraction form
    531,083.80/732,886.44 = 289,368.34/x
  3. Step 3: Cross multiply
    531,083.80x = 732,886.44 × 289,368.34
  4. Step 4: Simplify right side
    531,083.80x = 212,074,132,551.31
  5. Step 5: Solve for x
    x = 212,074,132,551.31/531,083.80
  6. Step 6: Final answer
    x = 399,323.29

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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.