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Finding the Fourth Proportional to 295,566.60, 443,349.90 and 257,075.40

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Solution

The fourth proportional to 295,566.60, 443,349.90 and 257,075.40 is: 385,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,566.60 : 443,349.90 = 257,075.40 : x
  2. Step 2: Convert to fraction form
    295,566.60/443,349.90 = 257,075.40/x
  3. Step 3: Cross multiply
    295,566.60x = 443,349.90 × 257,075.40
  4. Step 4: Simplify right side
    295,566.60x = 113,974,352,882.46
  5. Step 5: Solve for x
    x = 113,974,352,882.46/295,566.60
  6. Step 6: Final answer
    x = 385,613.10

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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.