Home / 714,201.55-985,597.53-391,931.89

Finding the Fourth Proportional to 714,201.55, 985,597.53 and 391,931.89

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Solution

The fourth proportional to 714,201.55, 985,597.53 and 391,931.89 is: 540,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,201.55 : 985,597.53 = 391,931.89 : x
  2. Step 2: Convert to fraction form
    714,201.55/985,597.53 = 391,931.89/x
  3. Step 3: Cross multiply
    714,201.55x = 985,597.53 × 391,931.89
  4. Step 4: Simplify right side
    714,201.55x = 386,287,102,712.23
  5. Step 5: Solve for x
    x = 386,287,102,712.23/714,201.55
  6. Step 6: Final answer
    x = 540,865.67

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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.