Home / 811,444.88-1,217,278.02-338,019.50

Finding the Fourth Proportional to 811,444.88, 1,217,278.02 and 338,019.50

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Solution

The fourth proportional to 811,444.88, 1,217,278.02 and 338,019.50 is: 507,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,444.88 : 1,217,278.02 = 338,019.50 : x
  2. Step 2: Convert to fraction form
    811,444.88/1,217,278.02 = 338,019.50/x
  3. Step 3: Cross multiply
    811,444.88x = 1,217,278.02 × 338,019.50
  4. Step 4: Simplify right side
    811,444.88x = 411,463,707,681.39
  5. Step 5: Solve for x
    x = 411,463,707,681.39/811,444.88
  6. Step 6: Final answer
    x = 507,075.36

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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.