Home / 923,089.36-1,273,862.64-520,681.36

Finding the Fourth Proportional to 923,089.36, 1,273,862.64 and 520,681.36

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Solution

The fourth proportional to 923,089.36, 1,273,862.64 and 520,681.36 is: 718,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,089.36 : 1,273,862.64 = 520,681.36 : x
  2. Step 2: Convert to fraction form
    923,089.36/1,273,862.64 = 520,681.36/x
  3. Step 3: Cross multiply
    923,089.36x = 1,273,862.64 × 520,681.36
  4. Step 4: Simplify right side
    923,089.36x = 663,276,531,848.39
  5. Step 5: Solve for x
    x = 663,276,531,848.39/923,089.36
  6. Step 6: Final answer
    x = 718,539.90

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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.