Home / 898,359.76-1,238,259.09-636,802.66

Finding the Fourth Proportional to 898,359.76, 1,238,259.09 and 636,802.66

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Solution

The fourth proportional to 898,359.76, 1,238,259.09 and 636,802.66 is: 877,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,359.76 : 1,238,259.09 = 636,802.66 : x
  2. Step 2: Convert to fraction form
    898,359.76/1,238,259.09 = 636,802.66/x
  3. Step 3: Cross multiply
    898,359.76x = 1,238,259.09 × 636,802.66
  4. Step 4: Simplify right side
    898,359.76x = 788,526,682,281.18
  5. Step 5: Solve for x
    x = 788,526,682,281.18/898,359.76
  6. Step 6: Final answer
    x = 877,740.43

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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.