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Finding the Fourth Proportional to 763,613.80, 1,053,820.16 and 437,029.32

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Solution

The fourth proportional to 763,613.80, 1,053,820.16 and 437,029.32 is: 603,119.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,613.80 : 1,053,820.16 = 437,029.32 : x
  2. Step 2: Convert to fraction form
    763,613.80/1,053,820.16 = 437,029.32/x
  3. Step 3: Cross multiply
    763,613.80x = 1,053,820.16 × 437,029.32
  4. Step 4: Simplify right side
    763,613.80x = 460,550,311,332.63
  5. Step 5: Solve for x
    x = 460,550,311,332.63/763,613.80
  6. Step 6: Final answer
    x = 603,119.42

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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.