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Finding the Fourth Proportional to 838,398.08, 1,156,953 and 456,426.16

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Solution

The fourth proportional to 838,398.08, 1,156,953 and 456,426.16 is: 629,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,398.08 : 1,156,953 = 456,426.16 : x
  2. Step 2: Convert to fraction form
    838,398.08/1,156,953 = 456,426.16/x
  3. Step 3: Cross multiply
    838,398.08x = 1,156,953 × 456,426.16
  4. Step 4: Simplify right side
    838,398.08x = 528,063,615,090.48
  5. Step 5: Solve for x
    x = 528,063,615,090.48/838,398.08
  6. Step 6: Final answer
    x = 629,848.31

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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.