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Finding the Fourth Proportional to 531,000.64, 732,772.35 and 289,286.14

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Solution

The fourth proportional to 531,000.64, 732,772.35 and 289,286.14 is: 399,210.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,000.64 : 732,772.35 = 289,286.14 : x
  2. Step 2: Convert to fraction form
    531,000.64/732,772.35 = 289,286.14/x
  3. Step 3: Cross multiply
    531,000.64x = 732,772.35 × 289,286.14
  4. Step 4: Simplify right side
    531,000.64x = 211,980,884,630.23
  5. Step 5: Solve for x
    x = 211,980,884,630.23/531,000.64
  6. Step 6: Final answer
    x = 399,210.22

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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.