Home / 898,881.40-1,240,448.14-490,983.19

Finding the Fourth Proportional to 898,881.40, 1,240,448.14 and 490,983.19

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Solution

The fourth proportional to 898,881.40, 1,240,448.14 and 490,983.19 is: 677,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,881.40 : 1,240,448.14 = 490,983.19 : x
  2. Step 2: Convert to fraction form
    898,881.40/1,240,448.14 = 490,983.19/x
  3. Step 3: Cross multiply
    898,881.40x = 1,240,448.14 × 490,983.19
  4. Step 4: Simplify right side
    898,881.40x = 609,039,182,319.38
  5. Step 5: Solve for x
    x = 609,039,182,319.38/898,881.40
  6. Step 6: Final answer
    x = 677,552.32

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Double scale
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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.