Home / 641,178,246.38-884,827,683.51-347,822,814.38

Finding the Fourth Proportional to 641,178,246.38, 884,827,683.51 and 347,822,814.38

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Solution

The fourth proportional to 641,178,246.38, 884,827,683.51 and 347,822,814.38 is: 479,996,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,178,246.38 : 884,827,683.51 = 347,822,814.38 : x
  2. Step 2: Convert to fraction form
    641,178,246.38/884,827,683.51 = 347,822,814.38/x
  3. Step 3: Cross multiply
    641,178,246.38x = 884,827,683.51 × 347,822,814.38
  4. Step 4: Simplify right side
    641,178,246.38x = 307,763,255,119,784,128
  5. Step 5: Solve for x
    x = 307,763,255,119,784,128/641,178,246.38
  6. Step 6: Final answer
    x = 479,996,407.95

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Double scale
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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.