Home / 841,756.34-1,161,279.86-621,521.45

Finding the Fourth Proportional to 841,756.34, 1,161,279.86 and 621,521.45

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Solution

The fourth proportional to 841,756.34, 1,161,279.86 and 621,521.45 is: 857,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,756.34 : 1,161,279.86 = 621,521.45 : x
  2. Step 2: Convert to fraction form
    841,756.34/1,161,279.86 = 621,521.45/x
  3. Step 3: Cross multiply
    841,756.34x = 1,161,279.86 × 621,521.45
  4. Step 4: Simplify right side
    841,756.34x = 721,760,333,528.99
  5. Step 5: Solve for x
    x = 721,760,333,528.99/841,756.34
  6. Step 6: Final answer
    x = 857,445.67

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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.