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Finding the Fourth Proportional to 644,702.90, 967,054.35 and 497,246.90

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Solution

The fourth proportional to 644,702.90, 967,054.35 and 497,246.90 is: 745,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,702.90 : 967,054.35 = 497,246.90 : x
  2. Step 2: Convert to fraction form
    644,702.90/967,054.35 = 497,246.90/x
  3. Step 3: Cross multiply
    644,702.90x = 967,054.35 × 497,246.90
  4. Step 4: Simplify right side
    644,702.90x = 480,864,777,669.02
  5. Step 5: Solve for x
    x = 480,864,777,669.02/644,702.90
  6. Step 6: Final answer
    x = 745,870.35

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Half scale
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Double scale
Find fourth proportional to 644,703.90, 967,055.85 and 497,247.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.