Home / 984,775.90-1,360,111.75-661,925.49

Finding the Fourth Proportional to 984,775.90, 1,360,111.75 and 661,925.49

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Solution

The fourth proportional to 984,775.90, 1,360,111.75 and 661,925.49 is: 914,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,775.90 : 1,360,111.75 = 661,925.49 : x
  2. Step 2: Convert to fraction form
    984,775.90/1,360,111.75 = 661,925.49/x
  3. Step 3: Cross multiply
    984,775.90x = 1,360,111.75 × 661,925.49
  4. Step 4: Simplify right side
    984,775.90x = 900,292,633,263.88
  5. Step 5: Solve for x
    x = 900,292,633,263.88/984,775.90
  6. Step 6: Final answer
    x = 914,210.67

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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.