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Finding the Fourth Proportional to 295,547.40, 443,321.10 and 266,977.80

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Solution

The fourth proportional to 295,547.40, 443,321.10 and 266,977.80 is: 400,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,547.40 : 443,321.10 = 266,977.80 : x
  2. Step 2: Convert to fraction form
    295,547.40/443,321.10 = 266,977.80/x
  3. Step 3: Cross multiply
    295,547.40x = 443,321.10 × 266,977.80
  4. Step 4: Simplify right side
    295,547.40x = 118,356,891,971.58
  5. Step 5: Solve for x
    x = 118,356,891,971.58/295,547.40
  6. Step 6: Final answer
    x = 400,466.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.