Home / 870,282.93-1,306,283.51-653,387.27

Finding the Fourth Proportional to 870,282.93, 1,306,283.51 and 653,387.27

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Solution

The fourth proportional to 870,282.93, 1,306,283.51 and 653,387.27 is: 980,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,282.93 : 1,306,283.51 = 653,387.27 : x
  2. Step 2: Convert to fraction form
    870,282.93/1,306,283.51 = 653,387.27/x
  3. Step 3: Cross multiply
    870,282.93x = 1,306,283.51 × 653,387.27
  4. Step 4: Simplify right side
    870,282.93x = 853,509,006,646.56
  5. Step 5: Solve for x
    x = 853,509,006,646.56/870,282.93
  6. Step 6: Final answer
    x = 980,725.90

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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.