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Finding the Fourth Proportional to 617,359.39, 930,666.31 and 576,209.63

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Solution

The fourth proportional to 617,359.39, 930,666.31 and 576,209.63 is: 868,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,359.39 : 930,666.31 = 576,209.63 : x
  2. Step 2: Convert to fraction form
    617,359.39/930,666.31 = 576,209.63/x
  3. Step 3: Cross multiply
    617,359.39x = 930,666.31 × 576,209.63
  4. Step 4: Simplify right side
    617,359.39x = 536,258,891,024.71
  5. Step 5: Solve for x
    x = 536,258,891,024.71/617,359.39
  6. Step 6: Final answer
    x = 868,633.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.