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Finding the Fourth Proportional to 640,966.65, 884,549.48 and 350,605.49

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Solution

The fourth proportional to 640,966.65, 884,549.48 and 350,605.49 is: 483,844.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,966.65 : 884,549.48 = 350,605.49 : x
  2. Step 2: Convert to fraction form
    640,966.65/884,549.48 = 350,605.49/x
  3. Step 3: Cross multiply
    640,966.65x = 884,549.48 × 350,605.49
  4. Step 4: Simplify right side
    640,966.65x = 310,127,904,636.62
  5. Step 5: Solve for x
    x = 310,127,904,636.62/640,966.65
  6. Step 6: Final answer
    x = 483,844.06

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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.