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Finding the Fourth Proportional to 539,668.80, 744,723.60 and 297,946.40

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Solution

The fourth proportional to 539,668.80, 744,723.60 and 297,946.40 is: 411,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,668.80 : 744,723.60 = 297,946.40 : x
  2. Step 2: Convert to fraction form
    539,668.80/744,723.60 = 297,946.40/x
  3. Step 3: Cross multiply
    539,668.80x = 744,723.60 × 297,946.40
  4. Step 4: Simplify right side
    539,668.80x = 221,887,715,615.04
  5. Step 5: Solve for x
    x = 221,887,715,615.04/539,668.80
  6. Step 6: Final answer
    x = 411,155.35

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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.