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Finding the Fourth Proportional to 1,416,712, 1,955,185.44 and 780,930.88

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Solution

The fourth proportional to 1,416,712, 1,955,185.44 and 780,930.88 is: 1,077,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,712 : 1,955,185.44 = 780,930.88 : x
  2. Step 2: Convert to fraction form
    1,416,712/1,955,185.44 = 780,930.88/x
  3. Step 3: Cross multiply
    1,416,712x = 1,955,185.44 × 780,930.88
  4. Step 4: Simplify right side
    1,416,712x = 1,526,864,686,222.39
  5. Step 5: Solve for x
    x = 1,526,864,686,222.39/1,416,712
  6. Step 6: Final answer
    x = 1,077,752.35

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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.