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Finding the Fourth Proportional to 910,561.95, 1,256,542.55 and 502,655.03

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Solution

The fourth proportional to 910,561.95, 1,256,542.55 and 502,655.03 is: 693,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,561.95 : 1,256,542.55 = 502,655.03 : x
  2. Step 2: Convert to fraction form
    910,561.95/1,256,542.55 = 502,655.03/x
  3. Step 3: Cross multiply
    910,561.95x = 1,256,542.55 × 502,655.03
  4. Step 4: Simplify right side
    910,561.95x = 631,607,437,564.52
  5. Step 5: Solve for x
    x = 631,607,437,564.52/910,561.95
  6. Step 6: Final answer
    x = 693,645.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.