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Finding the Fourth Proportional to 461,931, 637,466.70 and 249,963

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Solution

The fourth proportional to 461,931, 637,466.70 and 249,963 is: 344,949.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,931 : 637,466.70 = 249,963 : x
  2. Step 2: Convert to fraction form
    461,931/637,466.70 = 249,963/x
  3. Step 3: Cross multiply
    461,931x = 637,466.70 × 249,963
  4. Step 4: Simplify right side
    461,931x = 159,343,088,732.10
  5. Step 5: Solve for x
    x = 159,343,088,732.10/461,931
  6. Step 6: Final answer
    x = 344,949.98

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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.