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Finding the Fourth Proportional to 956,430.60, 1,434,978.02 and 424,325.26

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Solution

The fourth proportional to 956,430.60, 1,434,978.02 and 424,325.26 is: 636,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,430.60 : 1,434,978.02 = 424,325.26 : x
  2. Step 2: Convert to fraction form
    956,430.60/1,434,978.02 = 424,325.26/x
  3. Step 3: Cross multiply
    956,430.60x = 1,434,978.02 × 424,325.26
  4. Step 4: Simplify right side
    956,430.60x = 608,897,421,430.79
  5. Step 5: Solve for x
    x = 608,897,421,430.79/956,430.60
  6. Step 6: Final answer
    x = 636,635.24

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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.