Home / 811,461.56-1,217,303.10-338,036.18

Finding the Fourth Proportional to 811,461.56, 1,217,303.10 and 338,036.18

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Solution

The fourth proportional to 811,461.56, 1,217,303.10 and 338,036.18 is: 507,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,461.56 : 1,217,303.10 = 338,036.18 : x
  2. Step 2: Convert to fraction form
    811,461.56/1,217,303.10 = 338,036.18/x
  3. Step 3: Cross multiply
    811,461.56x = 1,217,303.10 × 338,036.18
  4. Step 4: Simplify right side
    811,461.56x = 411,492,489,826.16
  5. Step 5: Solve for x
    x = 411,492,489,826.16/811,461.56
  6. Step 6: Final answer
    x = 507,100.41

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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.