Home / 745,276.20-1,116,602.10-611,431.80

Finding the Fourth Proportional to 745,276.20, 1,116,602.10 and 611,431.80

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Solution

The fourth proportional to 745,276.20, 1,116,602.10 and 611,431.80 is: 916,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,276.20 : 1,116,602.10 = 611,431.80 : x
  2. Step 2: Convert to fraction form
    745,276.20/1,116,602.10 = 611,431.80/x
  3. Step 3: Cross multiply
    745,276.20x = 1,116,602.10 × 611,431.80
  4. Step 4: Simplify right side
    745,276.20x = 682,726,031,886.78
  5. Step 5: Solve for x
    x = 682,726,031,886.78/745,276.20
  6. Step 6: Final answer
    x = 916,071.16

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Double scale
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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.