Home / 838,632.90-1,157,314.80-456,661.20

Finding the Fourth Proportional to 838,632.90, 1,157,314.80 and 456,661.20

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Solution

The fourth proportional to 838,632.90, 1,157,314.80 and 456,661.20 is: 630,193.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,632.90 : 1,157,314.80 = 456,661.20 : x
  2. Step 2: Convert to fraction form
    838,632.90/1,157,314.80 = 456,661.20/x
  3. Step 3: Cross multiply
    838,632.90x = 1,157,314.80 × 456,661.20
  4. Step 4: Simplify right side
    838,632.90x = 528,500,765,345.76
  5. Step 5: Solve for x
    x = 528,500,765,345.76/838,632.90
  6. Step 6: Final answer
    x = 630,193.22

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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.