Home / 690,964.16-953,607.74-385,068.47

Finding the Fourth Proportional to 690,964.16, 953,607.74 and 385,068.47

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Solution

The fourth proportional to 690,964.16, 953,607.74 and 385,068.47 is: 531,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,964.16 : 953,607.74 = 385,068.47 : x
  2. Step 2: Convert to fraction form
    690,964.16/953,607.74 = 385,068.47/x
  3. Step 3: Cross multiply
    690,964.16x = 953,607.74 × 385,068.47
  4. Step 4: Simplify right side
    690,964.16x = 367,204,266,728.58
  5. Step 5: Solve for x
    x = 367,204,266,728.58/690,964.16
  6. Step 6: Final answer
    x = 531,437.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.