Home / 690,069.30-1,033,135.65-611,337.30

Finding the Fourth Proportional to 690,069.30, 1,033,135.65 and 611,337.30

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Solution

The fourth proportional to 690,069.30, 1,033,135.65 and 611,337.30 is: 915,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,069.30 : 1,033,135.65 = 611,337.30 : x
  2. Step 2: Convert to fraction form
    690,069.30/1,033,135.65 = 611,337.30/x
  3. Step 3: Cross multiply
    690,069.30x = 1,033,135.65 × 611,337.30
  4. Step 4: Simplify right side
    690,069.30x = 631,594,358,804.75
  5. Step 5: Solve for x
    x = 631,594,358,804.75/690,069.30
  6. Step 6: Final answer
    x = 915,262.22

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Double scale
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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.