Home / 816,713.52-1,127,065.68-454,133.40

Finding the Fourth Proportional to 816,713.52, 1,127,065.68 and 454,133.40

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Solution

The fourth proportional to 816,713.52, 1,127,065.68 and 454,133.40 is: 626,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,713.52 : 1,127,065.68 = 454,133.40 : x
  2. Step 2: Convert to fraction form
    816,713.52/1,127,065.68 = 454,133.40/x
  3. Step 3: Cross multiply
    816,713.52x = 1,127,065.68 × 454,133.40
  4. Step 4: Simplify right side
    816,713.52x = 511,838,169,281.71
  5. Step 5: Solve for x
    x = 511,838,169,281.71/816,713.52
  6. Step 6: Final answer
    x = 626,704.66

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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.