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Finding the Fourth Proportional to 583,810.03, 805,657.48 and 315,538.03

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Solution

The fourth proportional to 583,810.03, 805,657.48 and 315,538.03 is: 435,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,810.03 : 805,657.48 = 315,538.03 : x
  2. Step 2: Convert to fraction form
    583,810.03/805,657.48 = 315,538.03/x
  3. Step 3: Cross multiply
    583,810.03x = 805,657.48 × 315,538.03
  4. Step 4: Simplify right side
    583,810.03x = 254,215,574,093.96
  5. Step 5: Solve for x
    x = 254,215,574,093.96/583,810.03
  6. Step 6: Final answer
    x = 435,442.29

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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.