Home / 626,723.18-864,888.40-340,243.19

Finding the Fourth Proportional to 626,723.18, 864,888.40 and 340,243.19

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Solution

The fourth proportional to 626,723.18, 864,888.40 and 340,243.19 is: 469,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,723.18 : 864,888.40 = 340,243.19 : x
  2. Step 2: Convert to fraction form
    626,723.18/864,888.40 = 340,243.19/x
  3. Step 3: Cross multiply
    626,723.18x = 864,888.40 × 340,243.19
  4. Step 4: Simplify right side
    626,723.18x = 294,272,388,210.00
  5. Step 5: Solve for x
    x = 294,272,388,210.00/626,723.18
  6. Step 6: Final answer
    x = 469,541.25

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Half scale
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Double scale
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Similar ratio
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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.