Home / 739,911,153.79-1,020,947,602.08-422,226,352.81

Finding the Fourth Proportional to 739,911,153.79, 1,020,947,602.08 and 422,226,352.81

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Solution

The fourth proportional to 739,911,153.79, 1,020,947,602.08 and 422,226,352.81 is: 582,598,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,911,153.79 : 1,020,947,602.08 = 422,226,352.81 : x
  2. Step 2: Convert to fraction form
    739,911,153.79/1,020,947,602.08 = 422,226,352.81/x
  3. Step 3: Cross multiply
    739,911,153.79x = 1,020,947,602.08 × 422,226,352.81
  4. Step 4: Simplify right side
    739,911,153.79x = 431,070,982,436,353,600
  5. Step 5: Solve for x
    x = 431,070,982,436,353,600/739,911,153.79
  6. Step 6: Final answer
    x = 582,598,302.82

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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.