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Finding the Fourth Proportional to 700,086.40, 1,048,574.40 and 606,774.40

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Solution

The fourth proportional to 700,086.40, 1,048,574.40 and 606,774.40 is: 908,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,086.40 : 1,048,574.40 = 606,774.40 : x
  2. Step 2: Convert to fraction form
    700,086.40/1,048,574.40 = 606,774.40/x
  3. Step 3: Cross multiply
    700,086.40x = 1,048,574.40 × 606,774.40
  4. Step 4: Simplify right side
    700,086.40x = 636,248,102,415.36
  5. Step 5: Solve for x
    x = 636,248,102,415.36/700,086.40
  6. Step 6: Final answer
    x = 908,813.69

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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.