Home / 935,069.90-1,290,402.36-505,349.01

Finding the Fourth Proportional to 935,069.90, 1,290,402.36 and 505,349.01

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Solution

The fourth proportional to 935,069.90, 1,290,402.36 and 505,349.01 is: 697,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,069.90 : 1,290,402.36 = 505,349.01 : x
  2. Step 2: Convert to fraction form
    935,069.90/1,290,402.36 = 505,349.01/x
  3. Step 3: Cross multiply
    935,069.90x = 1,290,402.36 × 505,349.01
  4. Step 4: Simplify right side
    935,069.90x = 652,103,555,127.66
  5. Step 5: Solve for x
    x = 652,103,555,127.66/935,069.90
  6. Step 6: Final answer
    x = 697,384.83

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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.