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Finding the Fourth Proportional to 476,536.79, 718,151.95 and 429,211.19

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Solution

The fourth proportional to 476,536.79, 718,151.95 and 429,211.19 is: 646,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,536.79 : 718,151.95 = 429,211.19 : x
  2. Step 2: Convert to fraction form
    476,536.79/718,151.95 = 429,211.19/x
  3. Step 3: Cross multiply
    476,536.79x = 718,151.95 × 429,211.19
  4. Step 4: Simplify right side
    476,536.79x = 308,238,853,060.32
  5. Step 5: Solve for x
    x = 308,238,853,060.32/476,536.79
  6. Step 6: Final answer
    x = 646,831.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.