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Finding the Fourth Proportional to 922,713.32, 1,273,342.62 and 514,790.90

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Solution

The fourth proportional to 922,713.32, 1,273,342.62 and 514,790.90 is: 710,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,713.32 : 1,273,342.62 = 514,790.90 : x
  2. Step 2: Convert to fraction form
    922,713.32/1,273,342.62 = 514,790.90/x
  3. Step 3: Cross multiply
    922,713.32x = 1,273,342.62 × 514,790.90
  4. Step 4: Simplify right side
    922,713.32x = 655,505,186,991.45
  5. Step 5: Solve for x
    x = 655,505,186,991.45/922,713.32
  6. Step 6: Final answer
    x = 710,410.46

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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.