Home / 686,686,233.56-947,633,749.98-373,427,254.76

Finding the Fourth Proportional to 686,686,233.56, 947,633,749.98 and 373,427,254.76

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Solution

The fourth proportional to 686,686,233.56, 947,633,749.98 and 373,427,254.76 is: 515,333,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,686,233.56 : 947,633,749.98 = 373,427,254.76 : x
  2. Step 2: Convert to fraction form
    686,686,233.56/947,633,749.98 = 373,427,254.76/x
  3. Step 3: Cross multiply
    686,686,233.56x = 947,633,749.98 × 373,427,254.76
  4. Step 4: Simplify right side
    686,686,233.56x = 353,872,269,772,955,584
  5. Step 5: Solve for x
    x = 353,872,269,772,955,584/686,686,233.56
  6. Step 6: Final answer
    x = 515,333,281.02

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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.