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Finding the Fourth Proportional to 562,962.94, 776,695.93 and 321,071.56

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Solution

The fourth proportional to 562,962.94, 776,695.93 and 321,071.56 is: 442,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,962.94 : 776,695.93 = 321,071.56 : x
  2. Step 2: Convert to fraction form
    562,962.94/776,695.93 = 321,071.56/x
  3. Step 3: Cross multiply
    562,962.94x = 776,695.93 × 321,071.56
  4. Step 4: Simplify right side
    562,962.94x = 249,374,973,890.75
  5. Step 5: Solve for x
    x = 249,374,973,890.75/562,962.94
  6. Step 6: Final answer
    x = 442,968.72

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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.