Home / 945,377.04-1,304,624.42-515,666.40

Finding the Fourth Proportional to 945,377.04, 1,304,624.42 and 515,666.40

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Solution

The fourth proportional to 945,377.04, 1,304,624.42 and 515,666.40 is: 711,621.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,377.04 : 1,304,624.42 = 515,666.40 : x
  2. Step 2: Convert to fraction form
    945,377.04/1,304,624.42 = 515,666.40/x
  3. Step 3: Cross multiply
    945,377.04x = 1,304,624.42 × 515,666.40
  4. Step 4: Simplify right side
    945,377.04x = 672,750,978,013.49
  5. Step 5: Solve for x
    x = 672,750,978,013.49/945,377.04
  6. Step 6: Final answer
    x = 711,621.87

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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.