Home / 657,075.74-985,236.35-257,248.40

Finding the Fourth Proportional to 657,075.74, 985,236.35 and 257,248.40

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Solution

The fourth proportional to 657,075.74, 985,236.35 and 257,248.40 is: 385,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,075.74 : 985,236.35 = 257,248.40 : x
  2. Step 2: Convert to fraction form
    657,075.74/985,236.35 = 257,248.40/x
  3. Step 3: Cross multiply
    657,075.74x = 985,236.35 × 257,248.40
  4. Step 4: Simplify right side
    657,075.74x = 253,450,468,446.92
  5. Step 5: Solve for x
    x = 253,450,468,446.92/657,075.74
  6. Step 6: Final answer
    x = 385,724.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.