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Finding the Fourth Proportional to 531,017.64, 732,800.52 and 289,300.14

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Solution

The fourth proportional to 531,017.64, 732,800.52 and 289,300.14 is: 399,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,017.64 : 732,800.52 = 289,300.14 : x
  2. Step 2: Convert to fraction form
    531,017.64/732,800.52 = 289,300.14/x
  3. Step 3: Cross multiply
    531,017.64x = 732,800.52 × 289,300.14
  4. Step 4: Simplify right side
    531,017.64x = 211,999,293,028.07
  5. Step 5: Solve for x
    x = 211,999,293,028.07/531,017.64
  6. Step 6: Final answer
    x = 399,232.11

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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.