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Finding the Fourth Proportional to 709,473.80, 1,064,210.70 and 697,809.80

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Solution

The fourth proportional to 709,473.80, 1,064,210.70 and 697,809.80 is: 1,046,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,473.80 : 1,064,210.70 = 697,809.80 : x
  2. Step 2: Convert to fraction form
    709,473.80/1,064,210.70 = 697,809.80/x
  3. Step 3: Cross multiply
    709,473.80x = 1,064,210.70 × 697,809.80
  4. Step 4: Simplify right side
    709,473.80x = 742,616,655,724.86
  5. Step 5: Solve for x
    x = 742,616,655,724.86/709,473.80
  6. Step 6: Final answer
    x = 1,046,714.70

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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.