Home / 1,217,690.01-1,680,750-708,490.80

Finding the Fourth Proportional to 1,217,690.01, 1,680,750 and 708,490.80

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Solution

The fourth proportional to 1,217,690.01, 1,680,750 and 708,490.80 is: 977,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,690.01 : 1,680,750 = 708,490.80 : x
  2. Step 2: Convert to fraction form
    1,217,690.01/1,680,750 = 708,490.80/x
  3. Step 3: Cross multiply
    1,217,690.01x = 1,680,750 × 708,490.80
  4. Step 4: Simplify right side
    1,217,690.01x = 1,190,795,912,100
  5. Step 5: Solve for x
    x = 1,190,795,912,100/1,217,690.01
  6. Step 6: Final answer
    x = 977,913.84

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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.