Home / 626,534.10-864,617.85-340,054.20

Finding the Fourth Proportional to 626,534.10, 864,617.85 and 340,054.20

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Solution

The fourth proportional to 626,534.10, 864,617.85 and 340,054.20 is: 469,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,534.10 : 864,617.85 = 340,054.20 : x
  2. Step 2: Convert to fraction form
    626,534.10/864,617.85 = 340,054.20/x
  3. Step 3: Cross multiply
    626,534.10x = 864,617.85 × 340,054.20
  4. Step 4: Simplify right side
    626,534.10x = 294,016,931,287.47
  5. Step 5: Solve for x
    x = 294,016,931,287.47/626,534.10
  6. Step 6: Final answer
    x = 469,275.23

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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.