Home / 945,574.30-1,304,866.65-515,854.33

Finding the Fourth Proportional to 945,574.30, 1,304,866.65 and 515,854.33

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Solution

The fourth proportional to 945,574.30, 1,304,866.65 and 515,854.33 is: 711,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,574.30 : 1,304,866.65 = 515,854.33 : x
  2. Step 2: Convert to fraction form
    945,574.30/1,304,866.65 = 515,854.33/x
  3. Step 3: Cross multiply
    945,574.30x = 1,304,866.65 × 515,854.33
  4. Step 4: Simplify right side
    945,574.30x = 673,121,111,475.10
  5. Step 5: Solve for x
    x = 673,121,111,475.10/945,574.30
  6. Step 6: Final answer
    x = 711,864.85

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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.