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Finding the Fourth Proportional to 979,513.86, 1,351,655 and 549,710.95

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Solution

The fourth proportional to 979,513.86, 1,351,655 and 549,710.95 is: 758,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,513.86 : 1,351,655 = 549,710.95 : x
  2. Step 2: Convert to fraction form
    979,513.86/1,351,655 = 549,710.95/x
  3. Step 3: Cross multiply
    979,513.86x = 1,351,655 × 549,710.95
  4. Step 4: Simplify right side
    979,513.86x = 743,019,547,363.98
  5. Step 5: Solve for x
    x = 743,019,547,363.98/979,513.86
  6. Step 6: Final answer
    x = 758,559.51

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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.