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Finding the Fourth Proportional to 549,045.16, 757,677.03 and 316,386.62

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Solution

The fourth proportional to 549,045.16, 757,677.03 and 316,386.62 is: 436,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,045.16 : 757,677.03 = 316,386.62 : x
  2. Step 2: Convert to fraction form
    549,045.16/757,677.03 = 316,386.62/x
  3. Step 3: Cross multiply
    549,045.16x = 757,677.03 × 316,386.62
  4. Step 4: Simplify right side
    549,045.16x = 239,718,870,784.95
  5. Step 5: Solve for x
    x = 239,718,870,784.95/549,045.16
  6. Step 6: Final answer
    x = 436,610.48

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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.