Home / 912,385.17-1,259,083.90-525,276.45

Finding the Fourth Proportional to 912,385.17, 1,259,083.90 and 525,276.45

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Solution

The fourth proportional to 912,385.17, 1,259,083.90 and 525,276.45 is: 724,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,385.17 : 1,259,083.90 = 525,276.45 : x
  2. Step 2: Convert to fraction form
    912,385.17/1,259,083.90 = 525,276.45/x
  3. Step 3: Cross multiply
    912,385.17x = 1,259,083.90 × 525,276.45
  4. Step 4: Simplify right side
    912,385.17x = 661,367,121,244.16
  5. Step 5: Solve for x
    x = 661,367,121,244.16/912,385.17
  6. Step 6: Final answer
    x = 724,877.11

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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.