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Finding the Fourth Proportional to 614,328.76, 847,822.98 and 342,484.66

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Solution

The fourth proportional to 614,328.76, 847,822.98 and 342,484.66 is: 472,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,328.76 : 847,822.98 = 342,484.66 : x
  2. Step 2: Convert to fraction form
    614,328.76/847,822.98 = 342,484.66/x
  3. Step 3: Cross multiply
    614,328.76x = 847,822.98 × 342,484.66
  4. Step 4: Simplify right side
    614,328.76x = 290,366,365,045.49
  5. Step 5: Solve for x
    x = 290,366,365,045.49/614,328.76
  6. Step 6: Final answer
    x = 472,656.31

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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.