Home / 970,196.40-1,338,153.78-711,986.13

Finding the Fourth Proportional to 970,196.40, 1,338,153.78 and 711,986.13

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Solution

The fourth proportional to 970,196.40, 1,338,153.78 and 711,986.13 is: 982,014.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,196.40 : 1,338,153.78 = 711,986.13 : x
  2. Step 2: Convert to fraction form
    970,196.40/1,338,153.78 = 711,986.13/x
  3. Step 3: Cross multiply
    970,196.40x = 1,338,153.78 × 711,986.13
  4. Step 4: Simplify right side
    970,196.40x = 952,746,931,167.07
  5. Step 5: Solve for x
    x = 952,746,931,167.07/970,196.40
  6. Step 6: Final answer
    x = 982,014.50

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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.