Home / 921,496.84-1,271,678.37-513,587.32

Finding the Fourth Proportional to 921,496.84, 1,271,678.37 and 513,587.32

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Solution

The fourth proportional to 921,496.84, 1,271,678.37 and 513,587.32 is: 708,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,496.84 : 1,271,678.37 = 513,587.32 : x
  2. Step 2: Convert to fraction form
    921,496.84/1,271,678.37 = 513,587.32/x
  3. Step 3: Cross multiply
    921,496.84x = 1,271,678.37 × 513,587.32
  4. Step 4: Simplify right side
    921,496.84x = 653,117,885,950.27
  5. Step 5: Solve for x
    x = 653,117,885,950.27/921,496.84
  6. Step 6: Final answer
    x = 708,757.60

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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.