Home / 714,152.55-985,527.81-391,868.03

Finding the Fourth Proportional to 714,152.55, 985,527.81 and 391,868.03

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Solution

The fourth proportional to 714,152.55, 985,527.81 and 391,868.03 is: 540,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,152.55 : 985,527.81 = 391,868.03 : x
  2. Step 2: Convert to fraction form
    714,152.55/985,527.81 = 391,868.03/x
  3. Step 3: Cross multiply
    714,152.55x = 985,527.81 × 391,868.03
  4. Step 4: Simplify right side
    714,152.55x = 386,196,838,335.14
  5. Step 5: Solve for x
    x = 386,196,838,335.14/714,152.55
  6. Step 6: Final answer
    x = 540,776.39

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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.