Home / 1,121,388.60-1,547,516.34-612,091.02

Finding the Fourth Proportional to 1,121,388.60, 1,547,516.34 and 612,091.02

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Solution

The fourth proportional to 1,121,388.60, 1,547,516.34 and 612,091.02 is: 844,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,388.60 : 1,547,516.34 = 612,091.02 : x
  2. Step 2: Convert to fraction form
    1,121,388.60/1,547,516.34 = 612,091.02/x
  3. Step 3: Cross multiply
    1,121,388.60x = 1,547,516.34 × 612,091.02
  4. Step 4: Simplify right side
    1,121,388.60x = 947,220,855,017.27
  5. Step 5: Solve for x
    x = 947,220,855,017.27/1,121,388.60
  6. Step 6: Final answer
    x = 844,685.65

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Double scale
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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.