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Finding the Fourth Proportional to 657,116.20, 922,451 and 657,116.20

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Solution

The fourth proportional to 657,116.20, 922,451 and 657,116.20 is: 922,451

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,116.20 : 922,451 = 657,116.20 : x
  2. Step 2: Convert to fraction form
    657,116.20/922,451 = 657,116.20/x
  3. Step 3: Cross multiply
    657,116.20x = 922,451 × 657,116.20
  4. Step 4: Simplify right side
    657,116.20x = 606,157,495,806.20
  5. Step 5: Solve for x
    x = 606,157,495,806.20/657,116.20
  6. Step 6: Final answer
    x = 922,451

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.