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Finding the Fourth Proportional to 675,053.46, 931,587.21 and 369,148.86

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Solution

The fourth proportional to 675,053.46, 931,587.21 and 369,148.86 is: 509,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,053.46 : 931,587.21 = 369,148.86 : x
  2. Step 2: Convert to fraction form
    675,053.46/931,587.21 = 369,148.86/x
  3. Step 3: Cross multiply
    675,053.46x = 931,587.21 × 369,148.86
  4. Step 4: Simplify right side
    675,053.46x = 343,894,356,562.08
  5. Step 5: Solve for x
    x = 343,894,356,562.08/675,053.46
  6. Step 6: Final answer
    x = 509,432.77

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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.