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Finding the Fourth Proportional to 362,547.42, 500,450.17 and 311,354.58

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Solution

The fourth proportional to 362,547.42, 500,450.17 and 311,354.58 is: 429,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,547.42 : 500,450.17 = 311,354.58 : x
  2. Step 2: Convert to fraction form
    362,547.42/500,450.17 = 311,354.58/x
  3. Step 3: Cross multiply
    362,547.42x = 500,450.17 × 311,354.58
  4. Step 4: Simplify right side
    362,547.42x = 155,817,452,491.28
  5. Step 5: Solve for x
    x = 155,817,452,491.28/362,547.42
  6. Step 6: Final answer
    x = 429,785.03

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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.