Home / 1,010,689.40-1,516,034.10-928,020.80

Finding the Fourth Proportional to 1,010,689.40, 1,516,034.10 and 928,020.80

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Solution

The fourth proportional to 1,010,689.40, 1,516,034.10 and 928,020.80 is: 1,392,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,689.40 : 1,516,034.10 = 928,020.80 : x
  2. Step 2: Convert to fraction form
    1,010,689.40/1,516,034.10 = 928,020.80/x
  3. Step 3: Cross multiply
    1,010,689.40x = 1,516,034.10 × 928,020.80
  4. Step 4: Simplify right side
    1,010,689.40x = 1,406,911,178,309.28
  5. Step 5: Solve for x
    x = 1,406,911,178,309.28/1,010,689.40
  6. Step 6: Final answer
    x = 1,392,031.20

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Double scale
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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.