Home / 688,986.28-1,033,412.59-209,218.25

Finding the Fourth Proportional to 688,986.28, 1,033,412.59 and 209,218.25

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Solution

The fourth proportional to 688,986.28, 1,033,412.59 and 209,218.25 is: 313,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,986.28 : 1,033,412.59 = 209,218.25 : x
  2. Step 2: Convert to fraction form
    688,986.28/1,033,412.59 = 209,218.25/x
  3. Step 3: Cross multiply
    688,986.28x = 1,033,412.59 × 209,218.25
  4. Step 4: Simplify right side
    688,986.28x = 216,208,773,607.77
  5. Step 5: Solve for x
    x = 216,208,773,607.77/688,986.28
  6. Step 6: Final answer
    x = 313,807.08

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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.