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Finding the Fourth Proportional to 545,613.26, 752,946.51 and 316,303.49

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Solution

The fourth proportional to 545,613.26, 752,946.51 and 316,303.49 is: 436,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,613.26 : 752,946.51 = 316,303.49 : x
  2. Step 2: Convert to fraction form
    545,613.26/752,946.51 = 316,303.49/x
  3. Step 3: Cross multiply
    545,613.26x = 752,946.51 × 316,303.49
  4. Step 4: Simplify right side
    545,613.26x = 238,159,605,131.59
  5. Step 5: Solve for x
    x = 238,159,605,131.59/545,613.26
  6. Step 6: Final answer
    x = 436,498.94

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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.