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Finding the Fourth Proportional to 508,111.61, 700,581.03 and 439,077.74

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Solution

The fourth proportional to 508,111.61, 700,581.03 and 439,077.74 is: 605,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,111.61 : 700,581.03 = 439,077.74 : x
  2. Step 2: Convert to fraction form
    508,111.61/700,581.03 = 439,077.74/x
  3. Step 3: Cross multiply
    508,111.61x = 700,581.03 × 439,077.74
  4. Step 4: Simplify right side
    508,111.61x = 307,609,535,339.27
  5. Step 5: Solve for x
    x = 307,609,535,339.27/508,111.61
  6. Step 6: Final answer
    x = 605,397.57

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1.5x scale

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.