Home / 697,085.70-1,045,628.55-519,938.70

Finding the Fourth Proportional to 697,085.70, 1,045,628.55 and 519,938.70

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Solution

The fourth proportional to 697,085.70, 1,045,628.55 and 519,938.70 is: 779,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,085.70 : 1,045,628.55 = 519,938.70 : x
  2. Step 2: Convert to fraction form
    697,085.70/1,045,628.55 = 519,938.70/x
  3. Step 3: Cross multiply
    697,085.70x = 1,045,628.55 × 519,938.70
  4. Step 4: Simplify right side
    697,085.70x = 543,662,748,969.89
  5. Step 5: Solve for x
    x = 543,662,748,969.89/697,085.70
  6. Step 6: Final answer
    x = 779,908.05

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1.5x scale

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.