Home / 649,531.80-974,445.30-294,647.40

Finding the Fourth Proportional to 649,531.80, 974,445.30 and 294,647.40

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Solution

The fourth proportional to 649,531.80, 974,445.30 and 294,647.40 is: 442,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,531.80 : 974,445.30 = 294,647.40 : x
  2. Step 2: Convert to fraction form
    649,531.80/974,445.30 = 294,647.40/x
  3. Step 3: Cross multiply
    649,531.80x = 974,445.30 × 294,647.40
  4. Step 4: Simplify right side
    649,531.80x = 287,117,774,087.22
  5. Step 5: Solve for x
    x = 287,117,774,087.22/649,531.80
  6. Step 6: Final answer
    x = 442,038.06

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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.