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Finding the Fourth Proportional to 610,510.15, 842,547.18 and 338,603.95

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Solution

The fourth proportional to 610,510.15, 842,547.18 and 338,603.95 is: 467,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,510.15 : 842,547.18 = 338,603.95 : x
  2. Step 2: Convert to fraction form
    610,510.15/842,547.18 = 338,603.95/x
  3. Step 3: Cross multiply
    610,510.15x = 842,547.18 × 338,603.95
  4. Step 4: Simplify right side
    610,510.15x = 285,289,803,209.36
  5. Step 5: Solve for x
    x = 285,289,803,209.36/610,510.15
  6. Step 6: Final answer
    x = 467,297.40

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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.