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Finding the Fourth Proportional to 583,874.32, 805,746.04 and 315,602.32

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Solution

The fourth proportional to 583,874.32, 805,746.04 and 315,602.32 is: 435,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,874.32 : 805,746.04 = 315,602.32 : x
  2. Step 2: Convert to fraction form
    583,874.32/805,746.04 = 315,602.32/x
  3. Step 3: Cross multiply
    583,874.32x = 805,746.04 × 315,602.32
  4. Step 4: Simplify right side
    583,874.32x = 254,295,319,554.81
  5. Step 5: Solve for x
    x = 254,295,319,554.81/583,874.32
  6. Step 6: Final answer
    x = 435,530.92

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Double scale
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Similar ratio
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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.