Home / 1,240,808.60-1,712,278.56-689,522.45

Finding the Fourth Proportional to 1,240,808.60, 1,712,278.56 and 689,522.45

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Solution

The fourth proportional to 1,240,808.60, 1,712,278.56 and 689,522.45 is: 951,520.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,808.60 : 1,712,278.56 = 689,522.45 : x
  2. Step 2: Convert to fraction form
    1,240,808.60/1,712,278.56 = 689,522.45/x
  3. Step 3: Cross multiply
    1,240,808.60x = 1,712,278.56 × 689,522.45
  4. Step 4: Simplify right side
    1,240,808.60x = 1,180,654,499,212.28
  5. Step 5: Solve for x
    x = 1,180,654,499,212.28/1,240,808.60
  6. Step 6: Final answer
    x = 951,520.25

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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.