Home / 706,078.20-1,059,117.30-648,017.40

Finding the Fourth Proportional to 706,078.20, 1,059,117.30 and 648,017.40

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Solution

The fourth proportional to 706,078.20, 1,059,117.30 and 648,017.40 is: 972,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,078.20 : 1,059,117.30 = 648,017.40 : x
  2. Step 2: Convert to fraction form
    706,078.20/1,059,117.30 = 648,017.40/x
  3. Step 3: Cross multiply
    706,078.20x = 1,059,117.30 × 648,017.40
  4. Step 4: Simplify right side
    706,078.20x = 686,326,439,041.02
  5. Step 5: Solve for x
    x = 686,326,439,041.02/706,078.20
  6. Step 6: Final answer
    x = 972,026.10

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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.