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Finding the Fourth Proportional to 700,460.40, 1,049,135.40 and 607,148.40

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Solution

The fourth proportional to 700,460.40, 1,049,135.40 and 607,148.40 is: 909,374.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,460.40 : 1,049,135.40 = 607,148.40 : x
  2. Step 2: Convert to fraction form
    700,460.40/1,049,135.40 = 607,148.40/x
  3. Step 3: Cross multiply
    700,460.40x = 1,049,135.40 × 607,148.40
  4. Step 4: Simplify right side
    700,460.40x = 636,980,879,493.36
  5. Step 5: Solve for x
    x = 636,980,879,493.36/700,460.40
  6. Step 6: Final answer
    x = 909,374.58

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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.