Home / 691,945.40-1,038,695.70-534,870.20

Finding the Fourth Proportional to 691,945.40, 1,038,695.70 and 534,870.20

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Solution

The fourth proportional to 691,945.40, 1,038,695.70 and 534,870.20 is: 802,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,945.40 : 1,038,695.70 = 534,870.20 : x
  2. Step 2: Convert to fraction form
    691,945.40/1,038,695.70 = 534,870.20/x
  3. Step 3: Cross multiply
    691,945.40x = 1,038,695.70 × 534,870.20
  4. Step 4: Simplify right side
    691,945.40x = 555,567,376,798.14
  5. Step 5: Solve for x
    x = 555,567,376,798.14/691,945.40
  6. Step 6: Final answer
    x = 802,906.38

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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.