Home / 698,643.80-1,047,965.70-610,070.30

Finding the Fourth Proportional to 698,643.80, 1,047,965.70 and 610,070.30

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Solution

The fourth proportional to 698,643.80, 1,047,965.70 and 610,070.30 is: 915,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,643.80 : 1,047,965.70 = 610,070.30 : x
  2. Step 2: Convert to fraction form
    698,643.80/1,047,965.70 = 610,070.30/x
  3. Step 3: Cross multiply
    698,643.80x = 1,047,965.70 × 610,070.30
  4. Step 4: Simplify right side
    698,643.80x = 639,332,748,988.71
  5. Step 5: Solve for x
    x = 639,332,748,988.71/698,643.80
  6. Step 6: Final answer
    x = 915,105.45

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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.