Home / 971,761.50-1,340,946.81-627,612.45

Finding the Fourth Proportional to 971,761.50, 1,340,946.81 and 627,612.45

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Solution

The fourth proportional to 971,761.50, 1,340,946.81 and 627,612.45 is: 866,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,761.50 : 1,340,946.81 = 627,612.45 : x
  2. Step 2: Convert to fraction form
    971,761.50/1,340,946.81 = 627,612.45/x
  3. Step 3: Cross multiply
    971,761.50x = 1,340,946.81 × 627,612.45
  4. Step 4: Simplify right side
    971,761.50x = 841,594,912,743.78
  5. Step 5: Solve for x
    x = 841,594,912,743.78/971,761.50
  6. Step 6: Final answer
    x = 866,050.89

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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.