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Finding the Fourth Proportional to 632,889.60, 873,386.19 and 346,407.18

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Solution

The fourth proportional to 632,889.60, 873,386.19 and 346,407.18 is: 478,041.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,889.60 : 873,386.19 = 346,407.18 : x
  2. Step 2: Convert to fraction form
    632,889.60/873,386.19 = 346,407.18/x
  3. Step 3: Cross multiply
    632,889.60x = 873,386.19 × 346,407.18
  4. Step 4: Simplify right side
    632,889.60x = 302,547,247,128.84
  5. Step 5: Solve for x
    x = 302,547,247,128.84/632,889.60
  6. Step 6: Final answer
    x = 478,041.11

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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.