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Finding the Fourth Proportional to 343,283.77, 473,746.61 and 190,312.23

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Solution

The fourth proportional to 343,283.77, 473,746.61 and 190,312.23 is: 262,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,283.77 : 473,746.61 = 190,312.23 : x
  2. Step 2: Convert to fraction form
    343,283.77/473,746.61 = 190,312.23/x
  3. Step 3: Cross multiply
    343,283.77x = 473,746.61 × 190,312.23
  4. Step 4: Simplify right side
    343,283.77x = 90,159,774,985.86
  5. Step 5: Solve for x
    x = 90,159,774,985.86/343,283.77
  6. Step 6: Final answer
    x = 262,639.20

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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.