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Finding the Fourth Proportional to 623,681.15, 860,615.70 and 460,424.48

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Solution

The fourth proportional to 623,681.15, 860,615.70 and 460,424.48 is: 635,338.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,681.15 : 860,615.70 = 460,424.48 : x
  2. Step 2: Convert to fraction form
    623,681.15/860,615.70 = 460,424.48/x
  3. Step 3: Cross multiply
    623,681.15x = 860,615.70 × 460,424.48
  4. Step 4: Simplify right side
    623,681.15x = 396,248,531,849.26
  5. Step 5: Solve for x
    x = 396,248,531,849.26/623,681.15
  6. Step 6: Final answer
    x = 635,338.32

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Double scale
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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.