Home / 708,440.88-977,619.84-386,144.16

Finding the Fourth Proportional to 708,440.88, 977,619.84 and 386,144.16

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Solution

The fourth proportional to 708,440.88, 977,619.84 and 386,144.16 is: 532,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,440.88 : 977,619.84 = 386,144.16 : x
  2. Step 2: Convert to fraction form
    708,440.88/977,619.84 = 386,144.16/x
  3. Step 3: Cross multiply
    708,440.88x = 977,619.84 × 386,144.16
  4. Step 4: Simplify right side
    708,440.88x = 377,502,191,916.13
  5. Step 5: Solve for x
    x = 377,502,191,916.13/708,440.88
  6. Step 6: Final answer
    x = 532,863.37

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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.