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Finding the Fourth Proportional to 554,021.68, 830,430.96 and 283,779.04

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Solution

The fourth proportional to 554,021.68, 830,430.96 and 283,779.04 is: 425,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,021.68 : 830,430.96 = 283,779.04 : x
  2. Step 2: Convert to fraction form
    554,021.68/830,430.96 = 283,779.04/x
  3. Step 3: Cross multiply
    554,021.68x = 830,430.96 × 283,779.04
  4. Step 4: Simplify right side
    554,021.68x = 235,658,900,615.08
  5. Step 5: Solve for x
    x = 235,658,900,615.08/554,021.68
  6. Step 6: Final answer
    x = 425,360.43

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1.5x scale

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.