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Finding the Fourth Proportional to 473,434.40, 710,151.60 and 421,824.80

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Solution

The fourth proportional to 473,434.40, 710,151.60 and 421,824.80 is: 632,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,434.40 : 710,151.60 = 421,824.80 : x
  2. Step 2: Convert to fraction form
    473,434.40/710,151.60 = 421,824.80/x
  3. Step 3: Cross multiply
    473,434.40x = 710,151.60 × 421,824.80
  4. Step 4: Simplify right side
    473,434.40x = 299,559,556,639.68
  5. Step 5: Solve for x
    x = 299,559,556,639.68/473,434.40
  6. Step 6: Final answer
    x = 632,737.20

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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.