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Finding the Fourth Proportional to 316,752.71, 437,125.77 and 180,783.90

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Solution

The fourth proportional to 316,752.71, 437,125.77 and 180,783.90 is: 249,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,752.71 : 437,125.77 = 180,783.90 : x
  2. Step 2: Convert to fraction form
    316,752.71/437,125.77 = 180,783.90/x
  3. Step 3: Cross multiply
    316,752.71x = 437,125.77 × 180,783.90
  4. Step 4: Simplify right side
    316,752.71x = 79,025,301,491.10
  5. Step 5: Solve for x
    x = 79,025,301,491.10/316,752.71
  6. Step 6: Final answer
    x = 249,485.80

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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.