Home / 714,090.95-985,445.43-408,173.87

Finding the Fourth Proportional to 714,090.95, 985,445.43 and 408,173.87

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Solution

The fourth proportional to 714,090.95, 985,445.43 and 408,173.87 is: 563,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,090.95 : 985,445.43 = 408,173.87 : x
  2. Step 2: Convert to fraction form
    714,090.95/985,445.43 = 408,173.87/x
  3. Step 3: Cross multiply
    714,090.95x = 985,445.43 × 408,173.87
  4. Step 4: Simplify right side
    714,090.95x = 402,233,074,836.91
  5. Step 5: Solve for x
    x = 402,233,074,836.91/714,090.95
  6. Step 6: Final answer
    x = 563,279.89

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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.