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Finding the Fourth Proportional to 556,385.60, 767,803.06 and 314,659.12

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Solution

The fourth proportional to 556,385.60, 767,803.06 and 314,659.12 is: 434,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,385.60 : 767,803.06 = 314,659.12 : x
  2. Step 2: Convert to fraction form
    556,385.60/767,803.06 = 314,659.12/x
  3. Step 3: Cross multiply
    556,385.60x = 767,803.06 × 314,659.12
  4. Step 4: Simplify right side
    556,385.60x = 241,596,233,666.72
  5. Step 5: Solve for x
    x = 241,596,233,666.72/556,385.60
  6. Step 6: Final answer
    x = 434,224.46

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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.