Home / 1,119,714.40-1,679,571.60-409,814.20

Finding the Fourth Proportional to 1,119,714.40, 1,679,571.60 and 409,814.20

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Solution

The fourth proportional to 1,119,714.40, 1,679,571.60 and 409,814.20 is: 614,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,714.40 : 1,679,571.60 = 409,814.20 : x
  2. Step 2: Convert to fraction form
    1,119,714.40/1,679,571.60 = 409,814.20/x
  3. Step 3: Cross multiply
    1,119,714.40x = 1,679,571.60 × 409,814.20
  4. Step 4: Simplify right side
    1,119,714.40x = 688,312,291,596.72
  5. Step 5: Solve for x
    x = 688,312,291,596.72/1,119,714.40
  6. Step 6: Final answer
    x = 614,721.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.