Home / 911,470.32-1,257,829.16-529,521.71

Finding the Fourth Proportional to 911,470.32, 1,257,829.16 and 529,521.71

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Solution

The fourth proportional to 911,470.32, 1,257,829.16 and 529,521.71 is: 730,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,470.32 : 1,257,829.16 = 529,521.71 : x
  2. Step 2: Convert to fraction form
    911,470.32/1,257,829.16 = 529,521.71/x
  3. Step 3: Cross multiply
    911,470.32x = 1,257,829.16 × 529,521.71
  4. Step 4: Simplify right side
    911,470.32x = 666,047,838,754.31
  5. Step 5: Solve for x
    x = 666,047,838,754.31/911,470.32
  6. Step 6: Final answer
    x = 730,740.02

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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.