Home / 898,536.76-1,239,986.76-490,641.46

Finding the Fourth Proportional to 898,536.76, 1,239,986.76 and 490,641.46

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Solution

The fourth proportional to 898,536.76, 1,239,986.76 and 490,641.46 is: 677,088.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,536.76 : 1,239,986.76 = 490,641.46 : x
  2. Step 2: Convert to fraction form
    898,536.76/1,239,986.76 = 490,641.46/x
  3. Step 3: Cross multiply
    898,536.76x = 1,239,986.76 × 490,641.46
  4. Step 4: Simplify right side
    898,536.76x = 608,388,914,307.07
  5. Step 5: Solve for x
    x = 608,388,914,307.07/898,536.76
  6. Step 6: Final answer
    x = 677,088.51

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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.