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Finding the Fourth Proportional to 675,421.22, 932,088.66 and 369,491.06

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Solution

The fourth proportional to 675,421.22, 932,088.66 and 369,491.06 is: 509,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,421.22 : 932,088.66 = 369,491.06 : x
  2. Step 2: Convert to fraction form
    675,421.22/932,088.66 = 369,491.06/x
  3. Step 3: Cross multiply
    675,421.22x = 932,088.66 × 369,491.06
  4. Step 4: Simplify right side
    675,421.22x = 344,398,426,997.38
  5. Step 5: Solve for x
    x = 344,398,426,997.38/675,421.22
  6. Step 6: Final answer
    x = 509,901.70

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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.