Home / 1,119,389.60-1,679,303.10-445,356.20

Finding the Fourth Proportional to 1,119,389.60, 1,679,303.10 and 445,356.20

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Solution

The fourth proportional to 1,119,389.60, 1,679,303.10 and 445,356.20 is: 668,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,389.60 : 1,679,303.10 = 445,356.20 : x
  2. Step 2: Convert to fraction form
    1,119,389.60/1,679,303.10 = 445,356.20/x
  3. Step 3: Cross multiply
    1,119,389.60x = 1,679,303.10 × 445,356.20
  4. Step 4: Simplify right side
    1,119,389.60x = 747,888,047,264.22
  5. Step 5: Solve for x
    x = 747,888,047,264.22/1,119,389.60
  6. Step 6: Final answer
    x = 668,121.31

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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.