Home / 898,532.36-1,239,980.67-490,637.04

Finding the Fourth Proportional to 898,532.36, 1,239,980.67 and 490,637.04

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Solution

The fourth proportional to 898,532.36, 1,239,980.67 and 490,637.04 is: 677,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,532.36 : 1,239,980.67 = 490,637.04 : x
  2. Step 2: Convert to fraction form
    898,532.36/1,239,980.67 = 490,637.04/x
  3. Step 3: Cross multiply
    898,532.36x = 1,239,980.67 × 490,637.04
  4. Step 4: Simplify right side
    898,532.36x = 608,380,445,586.02
  5. Step 5: Solve for x
    x = 608,380,445,586.02/898,532.36
  6. Step 6: Final answer
    x = 677,082.40

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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.